rectangularadj.

Brit.

/rɛkˈtaŋɡjᵿlə/, U.S.

/rɛkˈtæŋɡjələr/

Forms: 1500s rectangulare, 1500s– rectangular.

Origin: A borrowing from Latin, combined with an English element. Etymons: Latin rectangulum , -ar suffix¹.

Etymology: < post-classical Latin rectangulum rectangle n. + -ar suffix¹, after rectangle n. Compare post-classical Latin rectangularis (1634 or earlier), Middle French, French rectangulaire (1571).

a. Shaped like a rectangle; having four sides and four right angles.

ΘΚΠ

the world > space > shape > angularity > specific angular shape > [adjective] > quadrilateral > square or rectangular > rectangular or oblong

eavelonga1387

long-warpeda1400

avelong1440

wrongc1440

squarelike1557

rectangular?a1560

rectangulous1680

fenestriform1860

oblong1888

?a1560 L. Digges Geom. Pract.: Pantometria (1571) sig. Z^v A rectangulare parallelogramme hauing the one of his conteyning sides the perimetrie of Octaedrons triangulare basis.

1624 H. Wotton Elements Archit. 19 To resolue vpon Rectangular Squares, as a mean betweene too few, and too many Angles.

1718 J. Quincy Pharmacopœia Officinalis 33 In Sugar, the same Pyramids, with oblong and rectangular Bases.

1728 E. Chambers Cycl. at Windmill A common Wind-Mill, whose Sails are Rectangular, and their Height about five times their Breadth.

1825 ‘J. Nicholson’ Operative Mechanic 578 The rectangular walls of an apartment.

1861 T. Lewin Jerusalem 197 The platform..was a rectangular space surrounded by a wall of its own.

1944 J. Millar in R. Greenhalgh Pract. Builder x. 342/2 The laying trowel is a rectangular sheet of steel about 10½ in. × 5 in.

1972 M. Kline Math. Thought i. 8 The diagonal of a rectangular gate with given height and width.

2006 C. Frazier Thirteen Moons ii. ii. 62 With the shutters closed, the place was lit only by the rectangular fall of light through the entryway.

b. Of a solid body: having its sides, base, or cross-section in the form of a rectangle, or with right-angled corners.

ΘΚΠ

the world > space > shape > angularity > specific angular shape > [adjective] > cube > cuboid

squarea1475

rectangular?a1560

diced1671

boxed1798

cuboidal1803

cuboid1829

the world > relative properties > number > geometry > shape or figure > [adjective] > three-dimensional > with particular section or base > quadrilateral

rectangular?a1560

rhombic1671

rhombical1728

?a1560 L. Digges Geom. Pract.: Pantometria (1571) iii. xv. sig. S.iij Your vessel therfore being prepared as is tofore declared, whether it be Cube or Rectangular Prisma it forceth not, ye shall first fill it full with water.

1624 H. Wotton Elements Archit. 47 Bricks moulded in their ordinary Rectangular forme.

1746 G. Adams Micrographia Illustrata x. 30 A rectangular Box having its two broadest Sides of Glass, is design'd on Purpose to be filled with Water.

1812 J. Playfair Outl. Nat. Philos. I. 154 When a rectangular beam is supported at both ends.

1816 R. Jameson Treat. External Characters Minerals (ed. 2) 111 The rectangular hexahedron is named cube.

1866 H. E. Roscoe Lessons Elem. Chem. xxv. 221 It is soluble in water, crystallizing in rectangular octohedra.

1911 M. Beerbohm Zuleika Dobson xiv. 213 She made as usual a neat rectangular pile of the letters that had come for him by post.

1988 A. Tyler Breathing Lessons iii. i. 194 Fiona returned, carrying a rectangular yellow kitchen sponge.

2003 I. Banks Raw Spirit (2004) iii. 52 There′s a big rectangular tank involved at this point which receives the spirit.

†c. figurative. Formal, stiff, rigid. Obsolete. rare.

ΚΠ

1826 New Monthly Mag. 17 326 They [sc. the stone lions at the foot of the Cordonata] are superior in the beauty of their ugliness to almost any monster of the kind extant at Rome: and true Egyptians, in the most rigid and rectangular sense of the word.

1842 E. A. Poe Myst. Marie Rogêt in Wks. (1864) I. 236 Lawyers, who, for the most part, content themselves with echoing the rectangular precepts of the courts.

2. Mathematics.

a. Of a triangle: right-angled. Cf. rectangle adj., rectangled adj. 1.

ΘΚΠ

the world > relative properties > number > geometry > shape or figure > [adjective] > two-dimensional > triangular > right-angled

orthogonal?a1560

rectangle1570

rectangular1624

1624 H. Wotton Elements Archit. 58 Those proportions, that make the sides of a Rectangular Triangle.

1678 R. Cudworth True Intellect. Syst. Universe i. v. 653 Nor doth every one, who hath an Idea of a Rectangular Triangle, presently understand, that the Square of the Subtense, is Equal to the Squares of both the Sides.

1727 tr. Plutarch Lives I. 276 Certain Dishes, which being polished Concave are adjusted so as to make two equal sides of a Rectangular Triangle [Gk. ὀρθογωνίου τριγώνου].

a1856 W. Hamilton Lect. Metaphysics (1859) II. xxxvi. 317 The older Conceptualists..assert that it is possible to conceive a triangle neither equilateral nor rectangular,—but both at once.

1866 Times 31 May 5/2 The Southern border of Brandenburg and the western border of Silesia may be regarded as the catheti of a rectangular triangle.

1936 Harvard Jrnl. Asiatic Stud. 1 226 Only one special case of the Pythagorean theorem is treated in the Chou Pi, viz. that of a rectangular triangle with the sides 3, 4, and 5.

2007 Jrnl. Geom. & Physics 57 1336 The prototile of the pinwheel tiling is a rectangular triangle.

b. Of a solid figure with a central axis: having the axis perpendicular to the base. Now rare.

ΚΠ

1728 E. Chambers Cycl. (at cited word) If a Cone, Cylinder, &c. be Perpendicular to the Plane of the Horizon, 'tis called a Rectangular or Right Cone, a Rectangular, &c. Cylinder.

1785 Philos. Trans. (Royal Soc.) 75 241 Suppose a rectangular cone cut into frustula by..planes perpendicular to the axis.

1828 F. R. Hassler Elements Geom. Planes & Solids v. 147 To find the content of the curved surface of a rectangular cylinder.

1974 SIAM Rev. 16 5 As a final remark we call attention to the restricted nature of a rectangular cone K_R.

3. Situated or placed at right angles. Science in later use.

ΘΚΠ

the world > space > relative position > position at right angles to something > [adjective]

perpendicularc1475

square?a1560

direct1563

rectangular1646

upright1678

orthogonal1694

normal1704

right-angled1802

cathetal1874

the world > relative properties > number > geometry > angle > [adjective] > right-angled > at right angles

square?a1560

rectangular1646

orthogonal1694

normal1704

orthotomic1857

1646 Sir T. Browne Pseudodoxia Epidemica 179 The thighes of other animals doe stand at angles with their spine, and have rectangular positions in birds.

1675 J. Ogilby Britannia Introd. sig. Pijb The acute Way on the Left leads to Hogsdon, and the Rectangular Way..over the Fields to Old-Street.

1855 J. Scoffern in Orr's Circle Sci.: Elem. Chem. 77 Crystals not having 3 rectangular axes... Rhombohedric, Pyramidal, Prismatic.

1869 J. Tyndall Notes 9 Lect. on Light §465 The elasticity of the ether is different in these two rectangular directions.

1935 A. H. G. Palmer & K. S. Snell Mechanics viii. 161 We proceed to express these results in Cartesians, the axes being rectangular.

1977 R. Lyle & P. H. Simpson Archit. Hist. Lexington 18 Little Stono is entirely Federal in character, with a steep pediment..and crisp rectangular lines.

2007 Acta Astronautica 60 777/2 Each body possesses an intrinsic set of three rectangular axes that describes its dynamics at best.

a. Having parts, lines, etc., at right angles to each other; characterized or distinguished by an arrangement or pattern of this kind. Also: consisting of rectangles; comprising or characterized by parts having this shape.In quot. 1728²: (of a windmill) having rectangular sails.

ΘΚΠ

the world > space > shape > angularity > [adjective] > constituting an angle > right > with parts or lines right-angled to each other

right-cornered1551

right-angled?a1560

rectangled1570

rectanguled1636

rectangular1703

right-angular1704

rectangulate1852

the world > relative properties > number > geometry > angle > [adjective] > right-angled > at right angles > having parts at right angles

rectangular1703

1703 T. Binning Light to Art of Gunnery (new ed.) i. 1 Decimal Fractions, whether they stand alone, or be joined with Integers, have always a Comma, or a small Rectangular Line before them.

1728 E. Chambers Cycl. at Barometer Horizontal, or Rectangular Barometer,..the Tube whereof is bent, in form of a Square.

1728 E. Chambers Cycl. at Windmill The best Form and Proportion of Rectangular Wind-Mills.

1844 Southport (Wisconsin Territory) Tel. 12 Nov. The dresses of this year are all of..rectangular patterns, quite offensive to the eye.

1879 F. Rutley Study of Rocks x. 91 The orthoclastic (rectangular cleavage) or that in which the chief cleavages are mutually situated at right angles.

1887 W. C. Ford Amer. Citizen's Man. ii. 55 The surveys are conducted on a uniform plan, known as the rectangular system.

1902 Proc. Royal Soc. 70 366 The distribution is such as to give the induced electromotive force a more rectangular wave-form.

1954 J. F. Kirkaldy Gen. Princ. Geol. ii. 29 Faults very often form a rectangular pattern.

2006 N.Y. Times (National ed.) 10 Dec. viii. 11/3 A screen displays..a rectangular grid that you adjust to confirm the final destination.

b. Crystallography. = orthorhombic adj. Now rare.

ΘΚΠ

the world > matter > chemistry > crystallography (general) > crystal (general) > crystal systems > [adjective] > orthorhombic

rhombic1671

rhomboid1671

rhomboidal1700

rectangular1837

trimetric1837

orthorhombic1854

prismatic1858

1837 J. D. Dana Syst. Mineral. App. i. 3 The inclination of the axes may be either rectangular or oblique, and in the one case the system of axes is termed the Rectangular, or Orthometric System, and in the other, the Oblique, or Clinometric System.

1860 H. Watts tr. L. Gmelin Hand-bk. Chem. XIV. 470 Cantharidin... Separates from ether or acetic acid, in flat, oblique, four-sided prisms with dihedral summits, and belonging to the rectangular system.

1957 Acta Crystallographica 10 282/1 The lattice of the low-temperature modification of [KClO₃] is definitely not orthorhombic (rectangular) at 250 °C.

Compounds

C1.

rectangular-shaped adj.

ΚΠ

1816 H. Ellis Jrnl. Proc. Embassy China 17 Aug. (1818) I. ii. 201 Rectangular-shaped gateways, called by the Chinese Py-loo, but by European exaggeration, triumphal arches.

1960 Farmer & Stockbreeder 8 Mar. (Suppl.) 10/3 Rectangular-shaped pods which should be gathered when 1 to 1½ in long.

1991 Ideal Home (BNC) Apr. (Insert) 25 A striking slatted-wood ceiling and decorative brickwork..complement this rectangular-shaped indoor pool.

C2.

rectangular coordinate n. Mathematics a coordinate measured with reference to a system of axes that intersect at right angles (see co-ordinate n. 2).

ΚΠ

1805 Monthly Rev. 48 474 The differential equations which involve the laws of a body's motion are expressed by means of three rectangular co-ordinates.

1936 R. S. Glasgow Princ. Radio Engin. i. 17 Instead of defining a vector in terms of rectangular coordinates, polar coordinates may be used.

2003 M. Kraak & F. Ormeling Cartography (ed. 2) v. 67/2 It is called the National Grid system and it adheres to a Cartesian rectangular coordinate system.

rectangular hyperbola n. Mathematics a hyperbola whose asymptotes are at right angles to one another.

ΚΠ

1730 J. Clarke Demonstr. Principal Sections Sir Isaac Newton's Princ. 216 Now if the Figure D E S be a Circle, or a rectangular Hyperbola, [etc.].

1869 W. H. Besant Conic Sections 131 If a rectangular hyperbola circumscribe a triangle, it passes through the orthocentre.

1986 H. I. Andrews Railway Traction iv. 67 Thus the speed, v, will correspond roughly to a rectangular hyperbola when plotted with respect to I.

rectangular staff n. (a) a kind of levelling staff (see quot. 1815; now historical); (b) Surgery a probe having the tip bent at a right angle, used in lithotomy (cf. staff n.¹ 7j; now disused).

ΚΠ

1815 tr. C. S. de M. de Martemont Treat. Topogr. II. iii. 61 With the Water-level, a very straight rectangular staff E F, fig. 48, called a Levelling-staff, is used, along which a rectangular piece of wood G slides.

1848 A. Buchanan in Monthly Jrnl. Med. Sci. Feb. 553 (title) On lithotomy, as performed with a rectangular staff.

1848 A. Buchanan in Monthly Jrnl. Med. Sci. Feb. 554 First of all, I shall describe the peculiar staff which I employ, and which I name rectangular, from its being bent at a right angle three inches from the lower end.]

1872 T. Bryant Pract. Surg. lii. 558 Buchanan's operation with the rectangular staff, bent three inches from the point.

1904 G. F. Lydston Surg. Dis. Genito-urinary Tract (rev. ed.) xxxiv. 822 A rectangular staff has been suggested in lieu of the ordinary curved instrument.

1998 G. L'E. Turner Sci. Instruments 30 His instrument..was called Jacob's staff after the Biblical story in Genesis 32:10. It consists of a rectangular staff, 5–6 feet (1.5 or 1.8 m) in length with a perpendicular vane that moves over it.

Derivatives

recˈtangularˌwise adv. rare in the shape of a rectangle; so as to form a rectangle or rectangles.

ΘΚΠ

the world > space > shape > angularity > specific angular shape > [adverb] > quadrilateral > rectangle

avelinges1577

rectangularwise1857

1857 J. Booker Hist. Anc. Chapels Didsbury & Chorlton 125 The tower is supported by three-stage buttresses with plain set-offs, placed rectangularwise.

1898 F. Davis Romano-Brit. City of Silchester 23 Their practice of building city walls rectangularwise.

This entry has been updated (OED Third Edition, June 2009; most recently modified version published online March 2022).

单词	rectangular
释义	rectangularadj. Brit. /rɛkˈtaŋɡjᵿlə/, U.S. /rɛkˈtæŋɡjələr/ Forms: 1500s rectangulare, 1500s– rectangular. Origin: A borrowing from Latin, combined with an English element. Etymons: Latin rectangulum , -ar suffix¹. Etymology: < post-classical Latin rectangulum rectangle n. + -ar suffix¹, after rectangle n. Compare post-classical Latin rectangularis (1634 or earlier), Middle French, French rectangulaire (1571). 1. a. Shaped like a rectangle; having four sides and four right angles. ΘΚΠ the world > space > shape > angularity > specific angular shape > [adjective] > quadrilateral > square or rectangular > rectangular or oblong eavelonga1387 long-warpeda1400 avelong1440 wrongc1440 squarelike1557 rectangular?a1560 rectangulous1680 fenestriform1860 oblong1888 ?a1560 L. Digges Geom. Pract.: Pantometria (1571) sig. Z^v A rectangulare parallelogramme hauing the one of his conteyning sides the perimetrie of Octaedrons triangulare basis. 1624 H. Wotton Elements Archit. 19 To resolue vpon Rectangular Squares, as a mean betweene too few, and too many Angles. 1718 J. Quincy Pharmacopœia Officinalis 33 In Sugar, the same Pyramids, with oblong and rectangular Bases. 1728 E. Chambers Cycl. at Windmill A common Wind-Mill, whose Sails are Rectangular, and their Height about five times their Breadth. 1825 ‘J. Nicholson’ Operative Mechanic 578 The rectangular walls of an apartment. 1861 T. Lewin Jerusalem 197 The platform..was a rectangular space surrounded by a wall of its own. 1944 J. Millar in R. Greenhalgh Pract. Builder x. 342/2 The laying trowel is a rectangular sheet of steel about 10½ in. × 5 in. 1972 M. Kline Math. Thought i. 8 The diagonal of a rectangular gate with given height and width. 2006 C. Frazier Thirteen Moons ii. ii. 62 With the shutters closed, the place was lit only by the rectangular fall of light through the entryway. b. Of a solid body: having its sides, base, or cross-section in the form of a rectangle, or with right-angled corners. ΘΚΠ the world > space > shape > angularity > specific angular shape > [adjective] > cube > cuboid squarea1475 rectangular?a1560 diced1671 boxed1798 cuboidal1803 cuboid1829 the world > relative properties > number > geometry > shape or figure > [adjective] > three-dimensional > with particular section or base > quadrilateral rectangular?a1560 rhombic1671 rhombical1728 ?a1560 L. Digges Geom. Pract.: Pantometria (1571) iii. xv. sig. S.iij Your vessel therfore being prepared as is tofore declared, whether it be Cube or Rectangular Prisma it forceth not, ye shall first fill it full with water. 1624 H. Wotton Elements Archit. 47 Bricks moulded in their ordinary Rectangular forme. 1746 G. Adams Micrographia Illustrata x. 30 A rectangular Box having its two broadest Sides of Glass, is design'd on Purpose to be filled with Water. 1812 J. Playfair Outl. Nat. Philos. I. 154 When a rectangular beam is supported at both ends. 1816 R. Jameson Treat. External Characters Minerals (ed. 2) 111 The rectangular hexahedron is named cube. 1866 H. E. Roscoe Lessons Elem. Chem. xxv. 221 It is soluble in water, crystallizing in rectangular octohedra. 1911 M. Beerbohm Zuleika Dobson xiv. 213 She made as usual a neat rectangular pile of the letters that had come for him by post. 1988 A. Tyler Breathing Lessons iii. i. 194 Fiona returned, carrying a rectangular yellow kitchen sponge. 2003 I. Banks Raw Spirit (2004) iii. 52 There′s a big rectangular tank involved at this point which receives the spirit. †c. figurative. Formal, stiff, rigid. Obsolete. rare. ΚΠ 1826 New Monthly Mag. 17 326 They [sc. the stone lions at the foot of the Cordonata] are superior in the beauty of their ugliness to almost any monster of the kind extant at Rome: and true Egyptians, in the most rigid and rectangular sense of the word. 1842 E. A. Poe Myst. Marie Rogêt in Wks. (1864) I. 236 Lawyers, who, for the most part, content themselves with echoing the rectangular precepts of the courts. 2. Mathematics. a. Of a triangle: right-angled. Cf. rectangle adj., rectangled adj. 1. ΘΚΠ the world > relative properties > number > geometry > shape or figure > [adjective] > two-dimensional > triangular > right-angled orthogonal?a1560 rectangle1570 rectangular1624 1624 H. Wotton Elements Archit. 58 Those proportions, that make the sides of a Rectangular Triangle. 1678 R. Cudworth True Intellect. Syst. Universe i. v. 653 Nor doth every one, who hath an Idea of a Rectangular Triangle, presently understand, that the Square of the Subtense, is Equal to the Squares of both the Sides. 1727 tr. Plutarch Lives I. 276 Certain Dishes, which being polished Concave are adjusted so as to make two equal sides of a Rectangular Triangle [Gk. ὀρθογωνίου τριγώνου]. a1856 W. Hamilton Lect. Metaphysics (1859) II. xxxvi. 317 The older Conceptualists..assert that it is possible to conceive a triangle neither equilateral nor rectangular,—but both at once. 1866 Times 31 May 5/2 The Southern border of Brandenburg and the western border of Silesia may be regarded as the catheti of a rectangular triangle. 1936 Harvard Jrnl. Asiatic Stud. 1 226 Only one special case of the Pythagorean theorem is treated in the Chou Pi, viz. that of a rectangular triangle with the sides 3, 4, and 5. 2007 Jrnl. Geom. & Physics 57 1336 The prototile of the pinwheel tiling is a rectangular triangle. b. Of a solid figure with a central axis: having the axis perpendicular to the base. Now rare. ΚΠ 1728 E. Chambers Cycl. (at cited word) If a Cone, Cylinder, &c. be Perpendicular to the Plane of the Horizon, 'tis called a Rectangular or Right Cone, a Rectangular, &c. Cylinder. 1785 Philos. Trans. (Royal Soc.) 75 241 Suppose a rectangular cone cut into frustula by..planes perpendicular to the axis. 1828 F. R. Hassler Elements Geom. Planes & Solids v. 147 To find the content of the curved surface of a rectangular cylinder. 1974 SIAM Rev. 16 5 As a final remark we call attention to the restricted nature of a rectangular cone K_R. 3. Situated or placed at right angles. Science in later use. ΘΚΠ the world > space > relative position > position at right angles to something > [adjective] perpendicularc1475 square?a1560 direct1563 rectangular1646 upright1678 orthogonal1694 normal1704 right-angled1802 cathetal1874 the world > relative properties > number > geometry > angle > [adjective] > right-angled > at right angles square?a1560 rectangular1646 orthogonal1694 normal1704 orthotomic1857 1646 Sir T. Browne Pseudodoxia Epidemica 179 The thighes of other animals doe stand at angles with their spine, and have rectangular positions in birds. View more context for this quotation 1675 J. Ogilby Britannia Introd. sig. Pijb The acute Way on the Left leads to Hogsdon, and the Rectangular Way..over the Fields to Old-Street. 1855 J. Scoffern in Orr's Circle Sci.: Elem. Chem. 77 Crystals not having 3 rectangular axes... Rhombohedric, Pyramidal, Prismatic. 1869 J. Tyndall Notes 9 Lect. on Light §465 The elasticity of the ether is different in these two rectangular directions. 1935 A. H. G. Palmer & K. S. Snell Mechanics viii. 161 We proceed to express these results in Cartesians, the axes being rectangular. 1977 R. Lyle & P. H. Simpson Archit. Hist. Lexington 18 Little Stono is entirely Federal in character, with a steep pediment..and crisp rectangular lines. 2007 Acta Astronautica 60 777/2 Each body possesses an intrinsic set of three rectangular axes that describes its dynamics at best. 4. a. Having parts, lines, etc., at right angles to each other; characterized or distinguished by an arrangement or pattern of this kind. Also: consisting of rectangles; comprising or characterized by parts having this shape.In quot. 1728²: (of a windmill) having rectangular sails. ΘΚΠ the world > space > shape > angularity > [adjective] > constituting an angle > right > with parts or lines right-angled to each other right-cornered1551 right-angled?a1560 rectangled1570 rectanguled1636 rectangular1703 right-angular1704 rectangulate1852 the world > relative properties > number > geometry > angle > [adjective] > right-angled > at right angles > having parts at right angles rectangular1703 1703 T. Binning Light to Art of Gunnery (new ed.) i. 1 Decimal Fractions, whether they stand alone, or be joined with Integers, have always a Comma, or a small Rectangular Line before them. 1728 E. Chambers Cycl. at Barometer Horizontal, or Rectangular Barometer,..the Tube whereof is bent, in form of a Square. 1728 E. Chambers Cycl. at Windmill The best Form and Proportion of Rectangular Wind-Mills. 1844 Southport (Wisconsin Territory) Tel. 12 Nov. The dresses of this year are all of..rectangular patterns, quite offensive to the eye. 1879 F. Rutley Study of Rocks x. 91 The orthoclastic (rectangular cleavage) or that in which the chief cleavages are mutually situated at right angles. 1887 W. C. Ford Amer. Citizen's Man. ii. 55 The surveys are conducted on a uniform plan, known as the rectangular system. 1902 Proc. Royal Soc. 70 366 The distribution is such as to give the induced electromotive force a more rectangular wave-form. 1954 J. F. Kirkaldy Gen. Princ. Geol. ii. 29 Faults very often form a rectangular pattern. 2006 N.Y. Times (National ed.) 10 Dec. viii. 11/3 A screen displays..a rectangular grid that you adjust to confirm the final destination. b. Crystallography. = orthorhombic adj. Now rare. ΘΚΠ the world > matter > chemistry > crystallography (general) > crystal (general) > crystal systems > [adjective] > orthorhombic rhombic1671 rhomboid1671 rhomboidal1700 rectangular1837 trimetric1837 orthorhombic1854 prismatic1858 1837 J. D. Dana Syst. Mineral. App. i. 3 The inclination of the axes may be either rectangular or oblique, and in the one case the system of axes is termed the Rectangular, or Orthometric System, and in the other, the Oblique, or Clinometric System. 1860 H. Watts tr. L. Gmelin Hand-bk. Chem. XIV. 470 Cantharidin... Separates from ether or acetic acid, in flat, oblique, four-sided prisms with dihedral summits, and belonging to the rectangular system. 1957 Acta Crystallographica 10 282/1 The lattice of the low-temperature modification of [KClO₃] is definitely not orthorhombic (rectangular) at 250 °C. Compounds C1. rectangular-shaped adj. ΚΠ 1816 H. Ellis Jrnl. Proc. Embassy China 17 Aug. (1818) I. ii. 201 Rectangular-shaped gateways, called by the Chinese Py-loo, but by European exaggeration, triumphal arches. 1960 Farmer & Stockbreeder 8 Mar. (Suppl.) 10/3 Rectangular-shaped pods which should be gathered when 1 to 1½ in long. 1991 Ideal Home (BNC) Apr. (Insert) 25 A striking slatted-wood ceiling and decorative brickwork..complement this rectangular-shaped indoor pool. C2. rectangular coordinate n. Mathematics a coordinate measured with reference to a system of axes that intersect at right angles (see co-ordinate n. 2). ΚΠ 1805 Monthly Rev. 48 474 The differential equations which involve the laws of a body's motion are expressed by means of three rectangular co-ordinates. 1936 R. S. Glasgow Princ. Radio Engin. i. 17 Instead of defining a vector in terms of rectangular coordinates, polar coordinates may be used. 2003 M. Kraak & F. Ormeling Cartography (ed. 2) v. 67/2 It is called the National Grid system and it adheres to a Cartesian rectangular coordinate system. rectangular hyperbola n. Mathematics a hyperbola whose asymptotes are at right angles to one another. ΚΠ 1730 J. Clarke Demonstr. Principal Sections Sir Isaac Newton's Princ. 216 Now if the Figure D E S be a Circle, or a rectangular Hyperbola, [etc.]. 1869 W. H. Besant Conic Sections 131 If a rectangular hyperbola circumscribe a triangle, it passes through the orthocentre. 1986 H. I. Andrews Railway Traction iv. 67 Thus the speed, v, will correspond roughly to a rectangular hyperbola when plotted with respect to I. rectangular staff n. (a) a kind of levelling staff (see quot. 1815; now historical); (b) Surgery a probe having the tip bent at a right angle, used in lithotomy (cf. staff n.¹ 7j; now disused). ΚΠ 1815 tr. C. S. de M. de Martemont Treat. Topogr. II. iii. 61 With the Water-level, a very straight rectangular staff E F, fig. 48, called a Levelling-staff, is used, along which a rectangular piece of wood G slides. 1848 A. Buchanan in Monthly Jrnl. Med. Sci. Feb. 553 (title) On lithotomy, as performed with a rectangular staff. 1848 A. Buchanan in Monthly Jrnl. Med. Sci. Feb. 554 First of all, I shall describe the peculiar staff which I employ, and which I name rectangular, from its being bent at a right angle three inches from the lower end.] 1872 T. Bryant Pract. Surg. lii. 558 Buchanan's operation with the rectangular staff, bent three inches from the point. 1904 G. F. Lydston Surg. Dis. Genito-urinary Tract (rev. ed.) xxxiv. 822 A rectangular staff has been suggested in lieu of the ordinary curved instrument. 1998 G. L'E. Turner Sci. Instruments 30 His instrument..was called Jacob's staff after the Biblical story in Genesis 32:10. It consists of a rectangular staff, 5–6 feet (1.5 or 1.8 m) in length with a perpendicular vane that moves over it. Derivatives recˈtangularˌwise adv. rare in the shape of a rectangle; so as to form a rectangle or rectangles. ΘΚΠ the world > space > shape > angularity > specific angular shape > [adverb] > quadrilateral > rectangle avelinges1577 rectangularwise1857 1857 J. Booker Hist. Anc. Chapels Didsbury & Chorlton 125 The tower is supported by three-stage buttresses with plain set-offs, placed rectangularwise. 1898 F. Davis Romano-Brit. City of Silchester 23 Their practice of building city walls rectangularwise. This entry has been updated (OED Third Edition, June 2009; most recently modified version published online March 2022). < adj.?a1560
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