umbilicusn.

Brit.

/ʌmˈbɪlᵻkəs/,

/ˌʌmbᵻˈlʌɪkəs/, U.S.

/ˌəmˈbɪlᵻkəs/,

/ˌəmbəˈlaɪkəs/

Forms: Plural umbilici /-ˈaɪsaɪ//-ɪsaɪ/.

Etymology: < Latin umbilīcus: see umbilic n.

a. Anatomy. The central depression in the abdomen, marking the point of attachment of the umbilical cord; the navel.

ΘΚΠ

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

naveleOE

navel-stead1581

nombril1604

navea1616

navel-hole1671

umbilicus1799

omphalodium1892

belly-button1934

tummy-button1945

1615 H. Crooke Μικροκοσμογραϕια 80 They are called vasa vmbilicalia, because they passe through the Nauel which is called vmbilicus.

1684 tr. S. Blankaart Physical Dict. 297 Umbilicus, the Navel, is a Boss in the middle of the Abdomen, to which the Navel-string in a Fœtus is joined.

1728 E. Chambers Cycl. at Abdomen The middle part of the Umbilical [region], is call'd the Umbilicus, or Navel.]

1799 Med. & Physical Jrnl. 1 422 Immediately over the left rectus muscle, at its half intersection below the umbilicus.

1834 J. Forbes tr. R. T. H. Laennec Treat. Dis. Chest (ed. 4) 345 This tumour increased and extended towards the umbilicus.

1878 J. S. Bristowe Treat. Theory & Pract. Med. (ed. 2) ii. v. 650 In which case the general symmetry of the belly is maintained, but the umbilicus is usually deeply sunk.

b. Botany. The part of a seed by which it is attached to the placenta.

ΘΚΠ

the world > plants > part of plant > reproductive part(s) > seed > [noun] > parts of > funicle

umbilical vessel1731

funiculus1732

podosperm1819

umbilical cord1819

retinaculum1821

funicle1824

umbilicus1837

umbilical bundle1875

1837 P. Keith Bot. Lexicon 89 They are then nourished by means of an umbilicus, which we cannot but regard as an external root.

1857 M. J. Berkeley Introd. Cryptogamic Bot. §108. 135 Acetabularia bears a whorl of threads,..seated on a delicate peduncle, with a few free-branched threads springing from the umbilicus.

1866 J. Lindley & T. Moore Treasury Bot. II. 1190/1 Umbilicus, the hilum of a seed; the scar formed by its separation from the placenta.

c. transferred. The central point.

ΘΚΠ

the world > space > relative position > central condition or position > [noun] > middle or centre > of a land, sea, or forest

navelOE

umbilicus1897

1897–8 G. T. Stokes Worthies Irish Ch. i. 5 Killare in the county of Westmeath, formerly regarded as the umbilicus of Ireland.

†2. (See quot. 1688) Obsolete.

ΘΚΠ

the world > animals > invertebrates > subkingdom Metazoa > grade Triploblastica or Coelomata > phylum Mollusca > [noun] > Testacea (shelled molluscs) > shelled mollusc > shell

seashella900

shale1561

buckie1596

caracol1622

valve1661

spire1681

umbilicus1688

conch-shell1697

wart-shell?1711

needle1713

multivalve1753

concha1755

periosteum1758

conch1773

devil's claw1773

furbelow1776

peewit's egg1776

worm-tube1776

rosebud1815

sheath1815

periostracum1833

epicuticle1885

epicuticula1886

leg of mutton1891

trivalve1891

1688 R. Holme Acad. Armory ii. 363/1 An Umbilicus or Navel shell..is a kind of writhen cockle or shell fish wrinkled and turned in on the top like a Navel.

3. Geometry.

†a. A focus. Obsolete.

ΘΚΠ

the world > relative properties > number > geometry > point > [noun] > of intersection or contact > of specific lines or curves

cuspis1646

focus1656

point of reflection1674

umbilicus1704

cuspid1743

cusp1758

rhamphoid1814

biplanar1849

oscnode1852

tacnode1852

tangential of a point1858

cnicnode1869

uniplane1869

unode1869

1704 J. Harris Lexicon Technicum I Umbelicus in an Ellipsis, &c. is that Focus about which the Motion of any Revolving Body is made, and which it respects as its Centre. So that either Focus may be called by this Name.

1728 E. Chambers Cycl. at Moon These smaller [planets] must move in Ellipses having their Umbilici in the Centres of the larger.

b. A point in a surface through which all its lines of curvature pass.

ΘΚΠ

the world > relative properties > number > geometry > point > [noun] > on a surface or plane

conical point1812

umbilicus1841

stigma1863

binode1869

branch-point1878

saddle point1907

saddle1952

1841 J. R. Young Math Diss. ii. 36 The perplexities and mistakes in the theory of umbilici.

1863 P. Frost & J. Wolstenholme Treat. Solid Geom. 418 To determine the conditions for an umbilicus.

1863 P. Frost & J. Wolstenholme Treat. Solid Geom. 420 To determine the number of umbilici on a surface of the n^th degree.

4. A small depression or hollow suggestive of a navel. (Chiefly in special applications.)

ΘΚΠ

the world > life > biology > physical aspects or shapes > indentation or cavity > [noun] > depression or cavity

pita1275

holec1300

cella1398

den1398

follicle?a1425

purse?a1425

pocketa1450

fossac1475

cystis1543

trench1565

conceptory1576

vesike1577

vesicle1578

vault1594

socket1601

bladderet1615

cistern1615

cavern1626

ventricle1641

bladder1661

antrum1684

conceptaculum1691

capsule1693

cellule1694

loculus1694

sinus1704

vesicula1705

vesica1706

fosse1710

pouch1712

cyst1721

air chamber1725

fossula1733

alveole1739

sac1741

sacculus1749

locule1751

compartment1772

air cell1774

fossule1803

umbilicus1811

conceptacle1819

cœlia1820

utricle1822

air sac1835

saccule1836

ampulla1845

vacuole1853

scrobicule1880

faveolus1882

a.Bot.

1811 R. Brown in Trans. Linn. Soc. 10 36 It is not accompanied by the usual position or even uniformity in the situation of the external umbilicus.

1812 S. Edwards New Bot. Garden I. 42 The berries are round with a depressed umbilicus.

1845 Florist's Jrnl. (1846) 6 196 In the umbilicus alone, whence the flowers appear, there are a few small brown rigid setæ rather than spines.

b.Ent.1819 G. Samouelle Entomologist's Compend. 190 Black, shining, impressed-punctate, cicatriculose; the punctures umbilicated, the umbilici perforate.1826 W. Kirby & W. Spence Introd. Entomol. III. 509 In Fulgora Diadema they [stemmata] are also umbilicated, but the umbilicus is circular.1828 J. Stark Elements Nat. Hist. II. 380 An indistinct style inclosed in an umbilicus at its extremity.c.Zool.1822 J. Parkinson Outl. Oryctol. 147 The substance round which the turns are formed, is on the left side of the shell, and terminates at its base; sometimes in a point, and sometimes in a hollow, which is termed an umbilicus.1851 S. P. Woodward Man. Mollusca i. 84 The umbilicus is small or obsolete in the typical nautili.1890 Hardwicke's Sci.-gossip 26 242/2 A variety of Helix hortensis..having..traces of white between the bands,..and white continuous over the umbilicus.d.Ornith.1879 T. Dunman Gloss. Biol. Terms 152 Umbilicus,..the name given to two apertures (superior and inferior) in the calamus of a bird's feather.e.Pathol.1886 P. H. Pye-Smith Fagge's Princ. & Pract. Med. II. 612 The cavity is ‘pocketed’ and shows a central depression or umbilicus.

This entry has not yet been fully updated (first published 1921; most recently modified version published online March 2022).

单词	umbilicus
释义	umbilicusn. Brit. /ʌmˈbɪlᵻkəs/, /ˌʌmbᵻˈlʌɪkəs/, U.S. /ˌəmˈbɪlᵻkəs/, /ˌəmbəˈlaɪkəs/ Forms: Plural umbilici /-ˈaɪsaɪ//-ɪsaɪ/. Etymology: < Latin umbilīcus: see umbilic n. 1. a. Anatomy. The central depression in the abdomen, marking the point of attachment of the umbilical cord; the navel. ΘΚΠ the world > life > the body > external parts of body > trunk > front > belly or abdomen > [noun] > navel naveleOE navel-stead1581 nombril1604 navea1616 navel-hole1671 umbilicus1799 omphalodium1892 belly-button1934 tummy-button1945 1615 H. Crooke Μικροκοσμογραϕια 80 They are called vasa vmbilicalia, because they passe through the Nauel which is called vmbilicus. 1684 tr. S. Blankaart Physical Dict. 297 Umbilicus, the Navel, is a Boss in the middle of the Abdomen, to which the Navel-string in a Fœtus is joined. 1728 E. Chambers Cycl. at Abdomen The middle part of the Umbilical [region], is call'd the Umbilicus, or Navel.] 1799 Med. & Physical Jrnl. 1 422 Immediately over the left rectus muscle, at its half intersection below the umbilicus. 1834 J. Forbes tr. R. T. H. Laennec Treat. Dis. Chest (ed. 4) 345 This tumour increased and extended towards the umbilicus. 1878 J. S. Bristowe Treat. Theory & Pract. Med. (ed. 2) ii. v. 650 In which case the general symmetry of the belly is maintained, but the umbilicus is usually deeply sunk. b. Botany. The part of a seed by which it is attached to the placenta. ΘΚΠ the world > plants > part of plant > reproductive part(s) > seed > [noun] > parts of > funicle umbilical vessel1731 funiculus1732 podosperm1819 umbilical cord1819 retinaculum1821 funicle1824 umbilicus1837 umbilical bundle1875 1837 P. Keith Bot. Lexicon 89 They are then nourished by means of an umbilicus, which we cannot but regard as an external root. 1857 M. J. Berkeley Introd. Cryptogamic Bot. §108. 135 Acetabularia bears a whorl of threads,..seated on a delicate peduncle, with a few free-branched threads springing from the umbilicus. 1866 J. Lindley & T. Moore Treasury Bot. II. 1190/1 Umbilicus, the hilum of a seed; the scar formed by its separation from the placenta. c. transferred. The central point. ΘΚΠ the world > space > relative position > central condition or position > [noun] > middle or centre > of a land, sea, or forest navelOE umbilicus1897 1897–8 G. T. Stokes Worthies Irish Ch. i. 5 Killare in the county of Westmeath, formerly regarded as the umbilicus of Ireland. †2. (See quot. 1688) Obsolete. ΘΚΠ the world > animals > invertebrates > subkingdom Metazoa > grade Triploblastica or Coelomata > phylum Mollusca > [noun] > Testacea (shelled molluscs) > shelled mollusc > shell seashella900 shale1561 buckie1596 caracol1622 valve1661 spire1681 umbilicus1688 conch-shell1697 wart-shell?1711 needle1713 multivalve1753 concha1755 periosteum1758 conch1773 devil's claw1773 furbelow1776 peewit's egg1776 worm-tube1776 rosebud1815 sheath1815 periostracum1833 epicuticle1885 epicuticula1886 leg of mutton1891 trivalve1891 1688 R. Holme Acad. Armory ii. 363/1 An Umbilicus or Navel shell..is a kind of writhen cockle or shell fish wrinkled and turned in on the top like a Navel. 3. Geometry. †a. A focus. Obsolete. ΘΚΠ the world > relative properties > number > geometry > point > [noun] > of intersection or contact > of specific lines or curves cuspis1646 focus1656 point of reflection1674 umbilicus1704 cuspid1743 cusp1758 rhamphoid1814 biplanar1849 oscnode1852 tacnode1852 tangential of a point1858 cnicnode1869 uniplane1869 unode1869 1704 J. Harris Lexicon Technicum I Umbelicus in an Ellipsis, &c. is that Focus about which the Motion of any Revolving Body is made, and which it respects as its Centre. So that either Focus may be called by this Name. 1728 E. Chambers Cycl. at Moon These smaller [planets] must move in Ellipses having their Umbilici in the Centres of the larger. b. A point in a surface through which all its lines of curvature pass. ΘΚΠ the world > relative properties > number > geometry > point > [noun] > on a surface or plane conical point1812 umbilicus1841 stigma1863 binode1869 branch-point1878 saddle point1907 saddle1952 1841 J. R. Young Math Diss. ii. 36 The perplexities and mistakes in the theory of umbilici. 1863 P. Frost & J. Wolstenholme Treat. Solid Geom. 418 To determine the conditions for an umbilicus. 1863 P. Frost & J. Wolstenholme Treat. Solid Geom. 420 To determine the number of umbilici on a surface of the n^th degree. 4. A small depression or hollow suggestive of a navel. (Chiefly in special applications.) ΘΚΠ the world > life > biology > physical aspects or shapes > indentation or cavity > [noun] > depression or cavity pita1275 holec1300 cella1398 den1398 follicle?a1425 purse?a1425 pocketa1450 fossac1475 cystis1543 trench1565 conceptory1576 vesike1577 vesicle1578 vault1594 socket1601 bladderet1615 cistern1615 cavern1626 ventricle1641 bladder1661 antrum1684 conceptaculum1691 capsule1693 cellule1694 loculus1694 sinus1704 vesicula1705 vesica1706 fosse1710 pouch1712 cyst1721 air chamber1725 fossula1733 alveole1739 sac1741 sacculus1749 locule1751 compartment1772 air cell1774 fossule1803 umbilicus1811 conceptacle1819 cœlia1820 utricle1822 air sac1835 saccule1836 ampulla1845 vacuole1853 scrobicule1880 faveolus1882 a.Bot. 1811 R. Brown in Trans. Linn. Soc. 10 36 It is not accompanied by the usual position or even uniformity in the situation of the external umbilicus. 1812 S. Edwards New Bot. Garden I. 42 The berries are round with a depressed umbilicus. 1845 Florist's Jrnl. (1846) 6 196 In the umbilicus alone, whence the flowers appear, there are a few small brown rigid setæ rather than spines. b.Ent.1819 G. Samouelle Entomologist's Compend. 190 Black, shining, impressed-punctate, cicatriculose; the punctures umbilicated, the umbilici perforate.1826 W. Kirby & W. Spence Introd. Entomol. III. 509 In Fulgora Diadema they [stemmata] are also umbilicated, but the umbilicus is circular.1828 J. Stark Elements Nat. Hist. II. 380 An indistinct style inclosed in an umbilicus at its extremity.c.Zool.1822 J. Parkinson Outl. Oryctol. 147 The substance round which the turns are formed, is on the left side of the shell, and terminates at its base; sometimes in a point, and sometimes in a hollow, which is termed an umbilicus.1851 S. P. Woodward Man. Mollusca i. 84 The umbilicus is small or obsolete in the typical nautili.1890 Hardwicke's Sci.-gossip 26 242/2 A variety of Helix hortensis..having..traces of white between the bands,..and white continuous over the umbilicus.d.Ornith.1879 T. Dunman Gloss. Biol. Terms 152 Umbilicus,..the name given to two apertures (superior and inferior) in the calamus of a bird's feather.e.Pathol.1886 P. H. Pye-Smith Fagge's Princ. & Pract. Med. II. 612 The cavity is ‘pocketed’ and shows a central depression or umbilicus. This entry has not yet been fully updated (first published 1921; most recently modified version published online March 2022). < n.1688
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