rectilinearadj.n.

Brit.

/ˌrɛktᵻˈlɪnɪə/, U.S.

/ˌrɛktəˈlɪniər/

Origin: Either (i) a borrowing from Latin. Or (ii) a borrowing from Latin, combined with an English element. Etymons: Latin rectilinearis ; Latin rectilineus , -ar suffix¹.

Etymology: Either < post-classical Latin rectilinearis (1620 in a British source; < recti- recti- comb. form + classical Latin līneāris linear adj.), or < post-classical Latin rectilineus rectiline adj. + -ar suffix¹. Compare linear adj. Compare earlier rectiline adj., rectilined adj., and rectilineal adj.

A. adj.

1. Of motion, a course, or a direction: taking or having the course of a straight line; tending always to the same point.In quot. 1827 in extended use, referring to the passage of time (cf. quot. 1691 at sense A. 3).

ΘΚΠ

the world > movement > motion in a certain direction > a straight course > [adjective]

forthrightc1000

rightOE

evenc1175

straightc1400

directa1500

right forth1561

outright1582

ungiddy1615

undeclined1638

forerighta1640

rectilinear1651

right-lined1702

rectilineala1774

arrow-straight1834

straightaway1874

point-to-point1930

1651 H. More Second Lash of Alazonomastix 171 Let the joynet motion therefore of the particles be either rectilinear or circular.

1696 W. Whiston New Theory of Earth i. 1 All Motion is of it self rectilinear.

1748 London Mag. 209 The Lead..would depart in a rectilinear Direction from the Hands of the Experimentator.

a1774 O. Goldsmith Surv. Exper. Philos. (1776) II. 350 In proportion as each succeeding ray has less force, it is driven more out of its rectilinear direction.

1827 J. C. Hare & A. W. Hare Guesses at Truth (1866) 2nd Ser. 340 The course of time is markt, not by the rectilinear flight, but by the oscillations and pulsations of life.

1889 Nature 21 Feb. 402/2 The play of forces concerned in rectilinear oscillations.

1946 L. Toft & A. T. J. Kersey Theory of Machines (ed. 5) i. 6 If the axis is fixed in direction, the consideration of the motion is analogous to that of the rectilinear motion of a particle.

2002 G. M. Eberhart Mysterious Creatures II. 564/2 Characteristics of African vipers (Viperinae), such as a squat body, rectilinear locomotion, large dorsal scales.

2. Of a figure, angle, or area: bounded or formed by straight lines.

ΘΚΠ

the world > space > shape > straightness > [adjective] > straight line > formed or bounded by straight lines

right-lined1551

rectiline1570

rectilined1570

straight-bounded1614

rectline1651

rectilinear1654

rectilineous1691

rectilineal1705

1654 W. Charleton Physiologia Epicuro-Gassendo-Charltoniana 472 The Angle of Contingence, which truly differs from a right line, is less than any Rectilinear Angle, however acute.

1672 I. Newton Let. 20 Aug. in Corr. (1959) I. 230 Let the five points be A, B, C, D, & E any three of wch as A, B, & C joyn to make a rectilinear triangle ABC.

1728 H. Pemberton View Sir I. Newton's Philos. 137 What has here been said upon this rectilinear figure [etc.].

1840 D. Lardner Treat. Geom. 223 If one side of a plane rectilinear angle revolve round its other side as an axis, it will produce the surface of a right circular cone.

1863 E. V. Neale Analogy Thought & Nature 255 A triangle is that plane rectilinear figure which has three sides.

1989 L. Adkins & R. A. Adkins Introd. Archaeol. (BNC) 35 It is possible to detect archaeological sites by cropmarks such as this small rectilinear enclosure.

2007 European Jrnl. Operational Res. 176 708 Each cell is represented by a rectilinear, but not necessarily convex polygon.

3. Forming or lying in a straight line.

ΘΚΠ

the world > space > shape > straightness > [adjective] > straight line

rectilineal1636

rectilinear1691

1691 J. Dunton Voy. round World III. xi. 403 Time runs in a direct Line forward: It is a rectilinear Series of Moments, and allows no Digression.

1704 I. Newton Opticks i. ii. 91 When I had caused the rectilinear sides..of the Spectrum of Colours made by the Prism to be distinctly defined.

1811 J. Pinkerton Petralogy II. 24 The granite which forms this vein has shrunk..with some rectilinear fissures.

1857 W. Whewell Hist. Inductive Sci. (ed. 3) I. 78 The rays of light are rectilinear.

1875 C. C. Blake Zoology 252 In the Conidæ the aperture is narrow and rectilinear, or nearly so.

1926 R. W. Lawson tr. G. von Hevesy & F. A. Paneth Man. Radioactivity vii. 78 Fig. 25..shows the tracks of individual α-particles. Almost without exception they are rectilinear.

2003 New Yorker 7 July 70/3 Dense lines of Norway maples on the solidly built-up rectilinear streets.

a. Characterized by straight lines. Also figurative: straightforward; strict, rigid.

ΘΚΠ

the world > space > shape > straightness > [adjective] > straight line > characterized by straight lines

straight-lined?a1560

rectilinear1728

1728 E. Chambers Cycl. at Map Rectilinear Maps, those wherein both the Meridians and Parallels are represented by right Lines.

1827 H. Steuart Planter's Guide (1828) 410 The rectilinear Gardens, and elaborate Topiary works handed down from antiquity.

1845 J. H. Parker Gloss. Terms Archit. (ed. 4) I. 192 The same rectilinear arrangement also pervaded many of the details.

1861 Good Words Aug. 433/1 The modern city..has a trim, rectilinear..air about it.

1897 J. Conrad Let. 12 Mar. (1956) 93 The man who can't appreciate the perversity of the Spoils of P. must redeem himself by the most rectilinear truthfulness.

1920 E. R. Lankester Secrets of Earth & Sea xviii. 202 The rectilinear angular decorative design which is known as the ‘Greek key pattern’.

1959 S. E. Rasmussen Experiencing Archit. (1962) vi. 127 Within the rigid rectilinear pattern the continuous flashing and fluttering of the birds are variations on a theme.

1991 P. Slater Dream Deferred ii. vi. 73 To the authoritarian mind the world is permanent and fixed—any departure from their rectilinear concept of it is seen as decay.

b. Architecture. Frequently with capital initial. = perpendicular adj. 4.

ΘΚΠ

society > leisure > the arts > visual arts > architecture > style of architecture > [adjective] > perpendicular

perpendicular1817

rectilinear1826

1826 Brit. Critic July 376 It is not merely the vertical mullions that run in straight lines, but the horizontal transoms also... Hence we would call this the ‘Rectilinear style’.

1852 Ecclesiologist 13 71 To the [name] Rectilinear Period he objected, that horizontal lines are just as much rectilinear as vertical ones, and therefore a Grecian temple is just as rectilinear as a Gothic cathedral.

1924 Cathedrals (Great Western Railway) (1926) 121 This ‘rectilinear’ tracery was imitated in low relief on blank wall surfaces.

1962 P. Frankl Gothic Archit. iv. 153 The tracery of the windows contained ogee arches—that is, the chapel combines Curvilinear and Rectilinear elements.

1995 Jrnl. Soc. Archit. Historians 54 302/2 Rebuilding of the church began c.1390,..starting with the presbytery in an advanced northern English rectilinear style.

c. Of a hand or machine saw: having a straight rather than a curved or circular blade. Now rare.

ΘΚΠ

society > occupation and work > equipment > cutting tool > saw > [adjective] > type or quality of

fine-toothed1601

rectilinear1847

tight1889

1847 C. Holtzapffel Turning & Mech. Manip. II. xxiv. 505 One rectilinear planing machine that is exclusively intended for cutting across the grain, namely, the mortising engine.

1853 W. Johnson Armengaud's Pract. Draughtsman's Bk. Industr. Design xiii. 172/2 These results show that, for small pieces of wood, one circular saw does as much work as four vertical rectilinear saws.

1918–19 Jrnl. Pathol. & Bacteriol. 22 96 The first [method of trephining] consists in cutting through the cranial bones by making straight strokes with a short rectilinear saw.

d. Photography. Of a lens, esp. a wide-angle lens: corrected for aberration so that straight and parallel lines in the subject appear straight and parallel in the image; free of barrel distortion and pincushion distortion.

ΚΠ

1867 J. H. Dallmeyer in Photogr. Jrnl. 15 June 49/1 (heading) On the cause of the central spot, or ‘flare’, in photographic lenses ; and on a new form of wide-angle rectilinear lens entirely free from this defect.

1889 G. M. Hopkins Exper. Sci. xv. 320 For copying, a good achromatic rectilinear lens is necessary.

1902 Westm. Gaz. 12 May 4/2 In practical photography..a good rapid rectilinear lens answers the purpose..and in nine cases out of ten the fine points of a stigmatic are wasted.

1969 Jrnl. Brit. Astron. Assoc. 79 434 Dallmeyer rapid rectilinear lens.

2004 Landscape & Urban Planning 68 7/1 A Siemans 17mm rectilinear lens was used.

†e. Designating a spectroscope in which light leaves in the same line as it enters, undergoing no overall deflection. Obsolete. rare.

ΘΚΠ

the world > physical sensation > sight and vision > optical instruments > lens > [adjective] > types of lenses

convex?a1560

planoconvex1665

concavo-convex1677

convexo-concave1693

strong1732

aplanatic1799

periscopic1803

omphaloptic1819

polyzonal1823

shallow1837

first-order1846

periscopical1846

orthoscopic1853

rectilinear1874

overcorrected1875

sphero-cylindrical1881

wide-aperture1882

afocal1887

apochromatic1887

anastigmatic1890

telecentric1892

photovisual1899

aspherical1922

aspheric1923

multifocal1928

plano1944

demagnifying1959

1874 tr. E. Lommel Nature of Light (ed. 4) 149 The direct vision or rectilinear spectroscope which instead of a single prism contains a combination of prisms, so that there is no deflection.

B. n.

1. A rectilinear figure; a straight line.

ΘΚΠ

the world > space > shape > angularity > specific angular shape > [noun] > rectilinear figure or shape

rectilinear1682

the world > relative properties > number > geometry > shape or figure > [noun] > two-dimensional

figure1340

platform1551

rectilinear1682

flata1690

lineatea1690

reptile1963

1682 A. Martindale Countrey-surv.-bk. 74 But to return to Triangles, (the most simple and primitive of all Rectilinears, and therefore the most considerable in this case of partition, as giving Laws often to the rest).

1837 United Service Jrnl. Oct. 269 The tracing of visual rays into optic planes and pyramids affords room for a good lesson on rectilinears.

1860 Future 1 45/1 Thus, in the rectilinears, the line has two points, the triangle three lines, the tetrahedron four triangles.

1951 B. Russell Crit. Expos. Philos. Leibniz (ed. 2) 234 All motion is rectilinear, or composed of rectilinears.

1984 Drama Rev. 28 103 There are rectilinears, diagonals, circles, continuously shifting one into another.

2000 D. W. Bailey Balkan Prehistory iii. 109 Designs on stamp bases varied and include..concentric rectilinear forms, maze-like interlocking rectilinears and straight or inward pointing V-shaped lines.

2. Photography. A rectilinear lens. Frequently in rapid rectilinear.

ΘΚΠ

society > leisure > the arts > visual arts > photography > camera > parts and accessories of camera > [noun] > lens > types of

portrait lens1852

short-focus lens1862

periscope1865

rectilinear1867

pantoscope1868

wide-angle1868

long lens1876

apochromatic1887

anastigmat1890

concentric lens1890

euryscope1890

landscape lens1890

rectigraph1890

symmetrical1890

concentric1893

telelens1893

telephoto1894

monocle1897

stigmat1901

stigmatic1902

Long Tom1910

zoom lens1932

Panavision1955

teleconverter1959

macro lens1961

zoom1969

macro1971

1867 J. H. Dallmeyer in Photogr. Jrnl. 15 June 54/2 From what has preceded on the formation of the central spot, reflection, &c., you will readily understand the cause of the greater brilliancy observed in all the pictures by the ‘Rectilinear’ over that of the ‘Globe’ or other such lenses.

1882 W. K. Burton Mod. Photogr. 36 The Rapid Rectilinear or Rapid Symmetrical is one of the most useful of lenses.

1909 Times 6 July 4/4 To-day, the triplet is almost extinct.., the rectilinears take a very subordinate position, and anastigmats are running the Petzval portrait lenses very close.

1989 R. Kingslake Hist. Photogr. Lens iv. 60 The real clue to the construction of the Rapid Rectilinear lay in the choice of glass.

2002 S. F. Ray Appl. Photogr. Optics (ed. 3) xxiv. 255/2 The Aplanat/Rapid Rectilinear was a fundamental design improvement and was popular for many decades.

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

单词	rectilinear
释义	rectilinearadj.n. Brit. /ˌrɛktᵻˈlɪnɪə/, U.S. /ˌrɛktəˈlɪniər/ Origin: Either (i) a borrowing from Latin. Or (ii) a borrowing from Latin, combined with an English element. Etymons: Latin rectilinearis ; Latin rectilineus , -ar suffix¹. Etymology: Either < post-classical Latin rectilinearis (1620 in a British source; < recti- recti- comb. form + classical Latin līneāris linear adj.), or < post-classical Latin rectilineus rectiline adj. + -ar suffix¹. Compare linear adj. Compare earlier rectiline adj., rectilined adj., and rectilineal adj. A. adj. 1. Of motion, a course, or a direction: taking or having the course of a straight line; tending always to the same point.In quot. 1827 in extended use, referring to the passage of time (cf. quot. 1691 at sense A. 3). ΘΚΠ the world > movement > motion in a certain direction > a straight course > [adjective] forthrightc1000 rightOE evenc1175 straightc1400 directa1500 right forth1561 outright1582 ungiddy1615 undeclined1638 forerighta1640 rectilinear1651 right-lined1702 rectilineala1774 arrow-straight1834 straightaway1874 point-to-point1930 1651 H. More Second Lash of Alazonomastix 171 Let the joynet motion therefore of the particles be either rectilinear or circular. 1696 W. Whiston New Theory of Earth i. 1 All Motion is of it self rectilinear. 1748 London Mag. 209 The Lead..would depart in a rectilinear Direction from the Hands of the Experimentator. a1774 O. Goldsmith Surv. Exper. Philos. (1776) II. 350 In proportion as each succeeding ray has less force, it is driven more out of its rectilinear direction. 1827 J. C. Hare & A. W. Hare Guesses at Truth (1866) 2nd Ser. 340 The course of time is markt, not by the rectilinear flight, but by the oscillations and pulsations of life. 1889 Nature 21 Feb. 402/2 The play of forces concerned in rectilinear oscillations. 1946 L. Toft & A. T. J. Kersey Theory of Machines (ed. 5) i. 6 If the axis is fixed in direction, the consideration of the motion is analogous to that of the rectilinear motion of a particle. 2002 G. M. Eberhart Mysterious Creatures II. 564/2 Characteristics of African vipers (Viperinae), such as a squat body, rectilinear locomotion, large dorsal scales. 2. Of a figure, angle, or area: bounded or formed by straight lines. ΘΚΠ the world > space > shape > straightness > [adjective] > straight line > formed or bounded by straight lines right-lined1551 rectiline1570 rectilined1570 straight-bounded1614 rectline1651 rectilinear1654 rectilineous1691 rectilineal1705 1654 W. Charleton Physiologia Epicuro-Gassendo-Charltoniana 472 The Angle of Contingence, which truly differs from a right line, is less than any Rectilinear Angle, however acute. 1672 I. Newton Let. 20 Aug. in Corr. (1959) I. 230 Let the five points be A, B, C, D, & E any three of wch as A, B, & C joyn to make a rectilinear triangle ABC. 1728 H. Pemberton View Sir I. Newton's Philos. 137 What has here been said upon this rectilinear figure [etc.]. 1840 D. Lardner Treat. Geom. 223 If one side of a plane rectilinear angle revolve round its other side as an axis, it will produce the surface of a right circular cone. 1863 E. V. Neale Analogy Thought & Nature 255 A triangle is that plane rectilinear figure which has three sides. 1989 L. Adkins & R. A. Adkins Introd. Archaeol. (BNC) 35 It is possible to detect archaeological sites by cropmarks such as this small rectilinear enclosure. 2007 European Jrnl. Operational Res. 176 708 Each cell is represented by a rectilinear, but not necessarily convex polygon. 3. Forming or lying in a straight line. ΘΚΠ the world > space > shape > straightness > [adjective] > straight line rectilineal1636 rectilinear1691 1691 J. Dunton Voy. round World III. xi. 403 Time runs in a direct Line forward: It is a rectilinear Series of Moments, and allows no Digression. 1704 I. Newton Opticks i. ii. 91 When I had caused the rectilinear sides..of the Spectrum of Colours made by the Prism to be distinctly defined. 1811 J. Pinkerton Petralogy II. 24 The granite which forms this vein has shrunk..with some rectilinear fissures. 1857 W. Whewell Hist. Inductive Sci. (ed. 3) I. 78 The rays of light are rectilinear. 1875 C. C. Blake Zoology 252 In the Conidæ the aperture is narrow and rectilinear, or nearly so. 1926 R. W. Lawson tr. G. von Hevesy & F. A. Paneth Man. Radioactivity vii. 78 Fig. 25..shows the tracks of individual α-particles. Almost without exception they are rectilinear. 2003 New Yorker 7 July 70/3 Dense lines of Norway maples on the solidly built-up rectilinear streets. 4. a. Characterized by straight lines. Also figurative: straightforward; strict, rigid. ΘΚΠ the world > space > shape > straightness > [adjective] > straight line > characterized by straight lines straight-lined?a1560 rectilinear1728 1728 E. Chambers Cycl. at Map Rectilinear Maps, those wherein both the Meridians and Parallels are represented by right Lines. 1827 H. Steuart Planter's Guide (1828) 410 The rectilinear Gardens, and elaborate Topiary works handed down from antiquity. 1845 J. H. Parker Gloss. Terms Archit. (ed. 4) I. 192 The same rectilinear arrangement also pervaded many of the details. 1861 Good Words Aug. 433/1 The modern city..has a trim, rectilinear..air about it. 1897 J. Conrad Let. 12 Mar. (1956) 93 The man who can't appreciate the perversity of the Spoils of P. must redeem himself by the most rectilinear truthfulness. 1920 E. R. Lankester Secrets of Earth & Sea xviii. 202 The rectilinear angular decorative design which is known as the ‘Greek key pattern’. 1959 S. E. Rasmussen Experiencing Archit. (1962) vi. 127 Within the rigid rectilinear pattern the continuous flashing and fluttering of the birds are variations on a theme. 1991 P. Slater Dream Deferred ii. vi. 73 To the authoritarian mind the world is permanent and fixed—any departure from their rectilinear concept of it is seen as decay. b. Architecture. Frequently with capital initial. = perpendicular adj. 4. ΘΚΠ society > leisure > the arts > visual arts > architecture > style of architecture > [adjective] > perpendicular perpendicular1817 rectilinear1826 1826 Brit. Critic July 376 It is not merely the vertical mullions that run in straight lines, but the horizontal transoms also... Hence we would call this the ‘Rectilinear style’. 1852 Ecclesiologist 13 71 To the [name] Rectilinear Period he objected, that horizontal lines are just as much rectilinear as vertical ones, and therefore a Grecian temple is just as rectilinear as a Gothic cathedral. 1924 Cathedrals (Great Western Railway) (1926) 121 This ‘rectilinear’ tracery was imitated in low relief on blank wall surfaces. 1962 P. Frankl Gothic Archit. iv. 153 The tracery of the windows contained ogee arches—that is, the chapel combines Curvilinear and Rectilinear elements. 1995 Jrnl. Soc. Archit. Historians 54 302/2 Rebuilding of the church began c.1390,..starting with the presbytery in an advanced northern English rectilinear style. c. Of a hand or machine saw: having a straight rather than a curved or circular blade. Now rare. ΘΚΠ society > occupation and work > equipment > cutting tool > saw > [adjective] > type or quality of fine-toothed1601 rectilinear1847 tight1889 1847 C. Holtzapffel Turning & Mech. Manip. II. xxiv. 505 One rectilinear planing machine that is exclusively intended for cutting across the grain, namely, the mortising engine. 1853 W. Johnson Armengaud's Pract. Draughtsman's Bk. Industr. Design xiii. 172/2 These results show that, for small pieces of wood, one circular saw does as much work as four vertical rectilinear saws. 1918–19 Jrnl. Pathol. & Bacteriol. 22 96 The first [method of trephining] consists in cutting through the cranial bones by making straight strokes with a short rectilinear saw. d. Photography. Of a lens, esp. a wide-angle lens: corrected for aberration so that straight and parallel lines in the subject appear straight and parallel in the image; free of barrel distortion and pincushion distortion. ΚΠ 1867 J. H. Dallmeyer in Photogr. Jrnl. 15 June 49/1 (heading) On the cause of the central spot, or ‘flare’, in photographic lenses ; and on a new form of wide-angle rectilinear lens entirely free from this defect. 1889 G. M. Hopkins Exper. Sci. xv. 320 For copying, a good achromatic rectilinear lens is necessary. 1902 Westm. Gaz. 12 May 4/2 In practical photography..a good rapid rectilinear lens answers the purpose..and in nine cases out of ten the fine points of a stigmatic are wasted. 1969 Jrnl. Brit. Astron. Assoc. 79 434 Dallmeyer rapid rectilinear lens. 2004 Landscape & Urban Planning 68 7/1 A Siemans 17mm rectilinear lens was used. †e. Designating a spectroscope in which light leaves in the same line as it enters, undergoing no overall deflection. Obsolete. rare. ΘΚΠ the world > physical sensation > sight and vision > optical instruments > lens > [adjective] > types of lenses convex?a1560 planoconvex1665 concavo-convex1677 convexo-concave1693 strong1732 aplanatic1799 periscopic1803 omphaloptic1819 polyzonal1823 shallow1837 first-order1846 periscopical1846 orthoscopic1853 rectilinear1874 overcorrected1875 sphero-cylindrical1881 wide-aperture1882 afocal1887 apochromatic1887 anastigmatic1890 telecentric1892 photovisual1899 aspherical1922 aspheric1923 multifocal1928 plano1944 demagnifying1959 1874 tr. E. Lommel Nature of Light (ed. 4) 149 The direct vision or rectilinear spectroscope which instead of a single prism contains a combination of prisms, so that there is no deflection. B. n. 1. A rectilinear figure; a straight line. ΘΚΠ the world > space > shape > angularity > specific angular shape > [noun] > rectilinear figure or shape rectilinear1682 the world > relative properties > number > geometry > shape or figure > [noun] > two-dimensional figure1340 platform1551 rectilinear1682 flata1690 lineatea1690 reptile1963 1682 A. Martindale Countrey-surv.-bk. 74 But to return to Triangles, (the most simple and primitive of all Rectilinears, and therefore the most considerable in this case of partition, as giving Laws often to the rest). 1837 United Service Jrnl. Oct. 269 The tracing of visual rays into optic planes and pyramids affords room for a good lesson on rectilinears. 1860 Future 1 45/1 Thus, in the rectilinears, the line has two points, the triangle three lines, the tetrahedron four triangles. 1951 B. Russell Crit. Expos. Philos. Leibniz (ed. 2) 234 All motion is rectilinear, or composed of rectilinears. 1984 Drama Rev. 28 103 There are rectilinears, diagonals, circles, continuously shifting one into another. 2000 D. W. Bailey Balkan Prehistory iii. 109 Designs on stamp bases varied and include..concentric rectilinear forms, maze-like interlocking rectilinears and straight or inward pointing V-shaped lines. 2. Photography. A rectilinear lens. Frequently in rapid rectilinear. ΘΚΠ society > leisure > the arts > visual arts > photography > camera > parts and accessories of camera > [noun] > lens > types of portrait lens1852 short-focus lens1862 periscope1865 rectilinear1867 pantoscope1868 wide-angle1868 long lens1876 apochromatic1887 anastigmat1890 concentric lens1890 euryscope1890 landscape lens1890 rectigraph1890 symmetrical1890 concentric1893 telelens1893 telephoto1894 monocle1897 stigmat1901 stigmatic1902 Long Tom1910 zoom lens1932 Panavision1955 teleconverter1959 macro lens1961 zoom1969 macro1971 1867 J. H. Dallmeyer in Photogr. Jrnl. 15 June 54/2 From what has preceded on the formation of the central spot, reflection, &c., you will readily understand the cause of the greater brilliancy observed in all the pictures by the ‘Rectilinear’ over that of the ‘Globe’ or other such lenses. 1882 W. K. Burton Mod. Photogr. 36 The Rapid Rectilinear or Rapid Symmetrical is one of the most useful of lenses. 1909 Times 6 July 4/4 To-day, the triplet is almost extinct.., the rectilinears take a very subordinate position, and anastigmats are running the Petzval portrait lenses very close. 1989 R. Kingslake Hist. Photogr. Lens iv. 60 The real clue to the construction of the Rapid Rectilinear lay in the choice of glass. 2002 S. F. Ray Appl. Photogr. Optics (ed. 3) xxiv. 255/2 The Aplanat/Rapid Rectilinear was a fundamental design improvement and was popular for many decades. This entry has been updated (OED Third Edition, June 2009; most recently modified version published online June 2022). < adj.n.1651
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