umbilicn.

/ʌmˈbɪlɪk/

Forms: α. 1600s vmbilike, vmbilicke, umbilick, umbelic(k, 1600s, 1800s umbilic. β. 1600s vmbilique, umbelique.

Etymology: < Latin umbilīcus umbilicus n., related to Greek ὀμϕαλός , and ultimately to navel n. Hence also French ombilic , †umbilic (1556), Italian um- , ombilico , ombellico , Spanish ombligo , Portuguese umbigo . In sense 1 probably stressed umbiˈlic.

†1. The centre; the middle point or part. Obsolete.

ΘΚΠ

the world > space > relative position > central condition or position > [noun] > middle or centre

middleeOE

mideOE

midwardOE

middleheada1325

pointc1330

midsa1382

meanc1390

middleward1431

midstc1450

centrea1500

centrya1535

navel1604

umbilic1607

meditullium1611

half-way1634

umbrila1636

amidst1664

eye1671

umbil1688

omphalos1845

mid-career1911

middle-middle1926

α.

1607 Bp. J. King Serm. Oxon 5 Nov. 23 For the perpetration of it they went downe into the bowells of the earth, but for the inuention to the very vmbilicke, and centre of the earth.

1608 Bp. J. King Serm. St. Maries Oxf. 19 The verie middle and vmbilicke of natures prefined time.

1638 T. Herbert Some Yeares Trav. (rev. ed.) 113 Ormus is as it were the umbelick of the gulph.

1638 T. Herbert Some Yeares Trav. (rev. ed.) 265 Hell is in the Umbelic or navell of the world.

β. 1612 H. Peacham Gentlemans Exercise iii. 143 It was round, and equall from the vmbelique or middle point, to euery side.1615 E. Hoby Curry-combe vi. 248 Not only in Wales and Scotland, but euen in the vmbilique of the Saxons Dominion.1638 T. Herbert Some Yeares Trav. (rev. ed.) 214 In the umbelique or mid-part of this spatious Court is a quadrangular Tanck or Pond.

2. Geometry. (See quots. 1875 –1876.)

ΘΚΠ

the world > relative properties > number > geometry > point > [noun] > on a curve

first polar1836

umbilic1843

spinode1852

stationary point1856

ineunt1859

triple point1872

tacnode-cusp1873

1843 MacCullagh in Proc. Royal Irish Acad. 1840–4 (1846) 2 458 The focal hyperbola of the ellipsoid and the focal ellipse of the hyperboloid of two sheets, are umbilicar focals, and pass through the umbilics of these surfaces.

1875 P. Frost Solid Geom. (ed. 2) I. 166 The point-circles in which the variable circle terminates are called umbilics.

1876 Handbk. Sci. App. S. Kens. 46 At special points, called umbilics, the greatest and least curvatures (and therefore all the curvatures) are equal to one another. The sphere has the peculiarity that every point on it is an umbilic.

This entry has not yet been fully updated (first published 1921; most recently modified version published online December 2020).

† umbilicadj.

Forms: Also 1500s vm-, 1600s umbilique, 1700s umbilick.

Etymology: < Latin umbilīcus (see umbilic n.), the ending being taken as adjectival.

Obsolete.

1. umbilic point n. a central point.

ΘΚΠ

the world > relative properties > number > geometry > point > [noun] > sets or groups of points

umbilic point1586

involution1847

triad1850

range1859

point group1887

tetrad1889

tristigm1889

neighbourhood1891

trinode1891

trigraphy1895

Cantor set1902

web1909

limit cycle1918

Leech lattice1968

society > communication > indication > insignia > heraldic devices collective > escutcheon or shield > [noun] > one of nine fixed positions > other points

fesse-point1562

nombril1562

honour point1572

umbilic point1586

navel point1725

abyss1753

a.Her.

1586 J. Ferne Blazon of Gentrie 105 Counterchanging of them by the fesse or vmbilique point of the sheeld.

1586 J. Ferne Blazon of Gentrie 184 This scutcheon..was of old named fessey target bycause that the fesse or vmbilique point of the coate armor is occupied with a targe or sheeld.

b.Math.1700 Moxon's Math. made Easie (ed. 3) 177 Umbilique Points, or the 2 Focus or Centre-Points in an Elipsis.

2. (See quot. 1681.)

ΘΚΠ

the world > life > the body > external parts of body > trunk > front > belly or abdomen > [adjective] > navel

umbilical?1541

umbilic1681

omphalic1808

omphalodic1890

1681 Table of Hard Words in S. Pordage tr. T. Willis Remaining Med. Wks. Umbilic, belonging to the navel, or of the likeness or shape of the navel.

This entry has not yet been fully updated (first published 1921; most recently modified version published online December 2020).

单词	umbilic
释义	umbilicn. /ʌmˈbɪlɪk/ Forms: α. 1600s vmbilike, vmbilicke, umbilick, umbelic(k, 1600s, 1800s umbilic. β. 1600s vmbilique, umbelique. Etymology: < Latin umbilīcus umbilicus n., related to Greek ὀμϕαλός , and ultimately to navel n. Hence also French ombilic , †umbilic (1556), Italian um- , ombilico , ombellico , Spanish ombligo , Portuguese umbigo . In sense 1 probably stressed umbiˈlic. †1. The centre; the middle point or part. Obsolete. ΘΚΠ the world > space > relative position > central condition or position > [noun] > middle or centre middleeOE mideOE midwardOE middleheada1325 pointc1330 midsa1382 meanc1390 middleward1431 midstc1450 centrea1500 centrya1535 navel1604 umbilic1607 meditullium1611 half-way1634 umbrila1636 amidst1664 eye1671 umbil1688 omphalos1845 mid-career1911 middle-middle1926 α. 1607 Bp. J. King Serm. Oxon 5 Nov. 23 For the perpetration of it they went downe into the bowells of the earth, but for the inuention to the very vmbilicke, and centre of the earth. 1608 Bp. J. King Serm. St. Maries Oxf. 19 The verie middle and vmbilicke of natures prefined time. 1638 T. Herbert Some Yeares Trav. (rev. ed.) 113 Ormus is as it were the umbelick of the gulph. 1638 T. Herbert Some Yeares Trav. (rev. ed.) 265 Hell is in the Umbelic or navell of the world. β. 1612 H. Peacham Gentlemans Exercise iii. 143 It was round, and equall from the vmbelique or middle point, to euery side.1615 E. Hoby Curry-combe vi. 248 Not only in Wales and Scotland, but euen in the vmbilique of the Saxons Dominion.1638 T. Herbert Some Yeares Trav. (rev. ed.) 214 In the umbelique or mid-part of this spatious Court is a quadrangular Tanck or Pond. 2. Geometry. (See quots. 1875 –1876.) ΘΚΠ the world > relative properties > number > geometry > point > [noun] > on a curve first polar1836 umbilic1843 spinode1852 stationary point1856 ineunt1859 triple point1872 tacnode-cusp1873 1843 MacCullagh in Proc. Royal Irish Acad. 1840–4 (1846) 2 458 The focal hyperbola of the ellipsoid and the focal ellipse of the hyperboloid of two sheets, are umbilicar focals, and pass through the umbilics of these surfaces. 1875 P. Frost Solid Geom. (ed. 2) I. 166 The point-circles in which the variable circle terminates are called umbilics. 1876 Handbk. Sci. App. S. Kens. 46 At special points, called umbilics, the greatest and least curvatures (and therefore all the curvatures) are equal to one another. The sphere has the peculiarity that every point on it is an umbilic. This entry has not yet been fully updated (first published 1921; most recently modified version published online December 2020). † umbilicadj. Forms: Also 1500s vm-, 1600s umbilique, 1700s umbilick. Etymology: < Latin umbilīcus (see umbilic n.), the ending being taken as adjectival. Obsolete. 1. umbilic point n. a central point. ΘΚΠ the world > relative properties > number > geometry > point > [noun] > sets or groups of points umbilic point1586 involution1847 triad1850 range1859 point group1887 tetrad1889 tristigm1889 neighbourhood1891 trinode1891 trigraphy1895 Cantor set1902 web1909 limit cycle1918 Leech lattice1968 society > communication > indication > insignia > heraldic devices collective > escutcheon or shield > [noun] > one of nine fixed positions > other points fesse-point1562 nombril1562 honour point1572 umbilic point1586 navel point1725 abyss1753 a.Her. 1586 J. Ferne Blazon of Gentrie 105 Counterchanging of them by the fesse or vmbilique point of the sheeld. 1586 J. Ferne Blazon of Gentrie 184 This scutcheon..was of old named fessey target bycause that the fesse or vmbilique point of the coate armor is occupied with a targe or sheeld. b.Math.1700 Moxon's Math. made Easie (ed. 3) 177 Umbilique Points, or the 2 Focus or Centre-Points in an Elipsis. 2. (See quot. 1681.) ΘΚΠ the world > life > the body > external parts of body > trunk > front > belly or abdomen > [adjective] > navel umbilical?1541 umbilic1681 omphalic1808 omphalodic1890 1681 Table of Hard Words in S. Pordage tr. T. Willis Remaining Med. Wks. Umbilic, belonging to the navel, or of the likeness or shape of the navel. This entry has not yet been fully updated (first published 1921; most recently modified version published online December 2020). < n.1607adj.1586
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