semilunaradj.n.

/sɛmɪˈl(j)uːnə/

Etymology: < modern Latin sēmilūnāris, < *sēmilūna half-moon (compare late Latin sēmilūnium ); see semi- prefix 2b(a) and lunar adj. and n. Compare French semi-lunaire.

A. adj. Half-moon-shaped; crescentic. (Cf. lunar adj. 3)

a. in general use.

ΘΚΠ

the world > space > shape > curvature > types of curvature > [adjective] > crescent-shaped

hornedc1400

semilunar1598

crescent1603

moony1605

mooned1607

half-mooned1611

lunary1623

lunar1635

semilunary1638

lunated1673

lunulated1705

moon-shaped1709

semi-lunated1726

lunular1728

lunulate1760

sickle-shaped1764

crescent-shaped1776

lunate1777

moonified1795

crescented1818

crescentic1835

semilunate1841

crescentric1851

demilune1885

crescentoid1887

1598 A. M. tr. J. Guillemeau Frenche Chirurg. 17 b/1 The Knife is of the Latinistes callede ‘Culter excisorius lunatus’, in Englishe a semi-lunare cutting Knife.

1717 Philos. Trans. (Royal Soc.) 30 556 Some exactly Square, some oblong Square, some Semi-lunar.

1774 T. Pennant Tour Scotl. 1772 188 A beautiful semilunar bay.

1795 A. Seward Lett. (1811) IV. 102 A semilunar seat, beneath its boughs, admits four people.

1865 J. Lubbock Prehist. Times iii. 74 It is probable that the semi-lunar instruments were fixed in wooden handles, and then used in cleaning skins.

b. Zoology, Botany, and Anatomy (e.g. semilunar cartilage, semilunar fold, semilunar ganglion, semilunar valve: see quots.).

ΘΚΠ

the world > life > biology > physical aspects or shapes > shape > [adjective] > other shapes

plummet-like1605

semilunar1681

cordated1698

cordate1760

obcordate1775

club-shaped1776

flabelliform1777

obovate1785

button-shaped1791

clavate1803

placentiform?a1808

obovoid1819

valviform1819

constricted1826

vulviform1829

mitrate1836

bipenniform1842

sandaliform1848

scopiform1852

obclavate1856

obcordiform1857

oboval1857

utriform1860

broadsword-shaped1870

placentoid1885

hypsiloid1886

1681 N. Grew Musæum Regalis Societatis i. ii. 103 The Snout [sc. of the River-Whale] flat. Both the Chaps before of a Semilunar figure.

1719 J. Quincy Lexicon Physico-medicum (1722) Semilunar Valves, thus called from their resemblance in shape to a half moon.

1728 E. Chambers Cycl. Semi-Lunar Valves,..are little Valves or Membranes of a Semilunar Figure, placed in the Orifice of the Pulmonary Artery, to prevent the Relapse of the Blood into the Heart at the time of its Dilatation.

1753 Chambers's Cycl. Suppl. (at cited word) All the species of the semi~lunar shells have few convolutions.

1765 Philos. Trans. 1764 (Royal Soc.) 54 180 In the abdomen this nerve unites with the par vagum of the right side, and together form the great semi-lunar Ganglion.

1769 T. Pennant in Philos. Trans. 1768 (Royal Soc.) 58 93 Between the toes is a strong semilunar membrane.

1831 R. Knox tr. H. Cloquet Syst. Human Anat. (ed. 2) 133 The Semilunar Bone (os Lunatum), is smaller and less elongated than the scaphoid. Its upper surface is convex and smooth.

1839–47 Todd's Cycl. Anat. & Physiol. III. 84/2 The lacrymal caruncle and semilunar fold.

1840 E. Wilson Anatomist's Vade Mecum (1842) 69 The semilunar bone may be known by having a crescentic concavity, and a somewhat crescentic outline.

1852 J. D. Dana U.S. Exploring Exped.: Crustacea Pt. I 474 The nasal opening in males is irregularly semilunar.

1871 C. Darwin Descent of Man I. i. 23 In man..[the third eyelid] exists..as a mere rudiment, called the semilunar fold.

1873 St. G. Mivart Lessons Elem. Anat. v. 183 Two inter-articular cartilages, called semilunar, are..interposed between the cartilaginous articular surfaces of the femur and those of the tibia.

B. n.

A semilunar bone, valve, etc.

ΘΚΠ

the world > life > the body > structural parts > bone or bones > types of bones > [noun] > according to shape

seed-bone1615

pessulus1805

sesamoid1854

colonnette1872

scale1875

semilunar1893

1893 S. J. Gee Auscult. & Percuss. i. iii. 50 That the closure of the aortic semilunars precedes that of the pulmonary semilunars.

This entry has not yet been fully updated (first published 1911; most recently modified version published online June 2022).

单词	semilunar
释义	semilunaradj.n. /sɛmɪˈl(j)uːnə/ Etymology: < modern Latin sēmilūnāris, < sēmilūna half-moon (compare late Latin sēmilūnium* ); see semi- prefix 2b(a) and lunar adj. and n. Compare French semi-lunaire. A. adj. Half-moon-shaped; crescentic. (Cf. lunar adj. 3) a. in general use. ΘΚΠ the world > space > shape > curvature > types of curvature > [adjective] > crescent-shaped hornedc1400 semilunar1598 crescent1603 moony1605 mooned1607 half-mooned1611 lunary1623 lunar1635 semilunary1638 lunated1673 lunulated1705 moon-shaped1709 semi-lunated1726 lunular1728 lunulate1760 sickle-shaped1764 crescent-shaped1776 lunate1777 moonified1795 crescented1818 crescentic1835 semilunate1841 crescentric1851 demilune1885 crescentoid1887 1598 A. M. tr. J. Guillemeau Frenche Chirurg. 17 b/1 The Knife is of the Latinistes callede ‘Culter excisorius lunatus’, in Englishe a semi-lunare cutting Knife. 1717 Philos. Trans. (Royal Soc.) 30 556 Some exactly Square, some oblong Square, some Semi-lunar. 1774 T. Pennant Tour Scotl. 1772 188 A beautiful semilunar bay. 1795 A. Seward Lett. (1811) IV. 102 A semilunar seat, beneath its boughs, admits four people. 1865 J. Lubbock Prehist. Times iii. 74 It is probable that the semi-lunar instruments were fixed in wooden handles, and then used in cleaning skins. b. Zoology, Botany, and Anatomy (e.g. semilunar cartilage, semilunar fold, semilunar ganglion, semilunar valve: see quots.). ΘΚΠ the world > life > biology > physical aspects or shapes > shape > [adjective] > other shapes plummet-like1605 semilunar1681 cordated1698 cordate1760 obcordate1775 club-shaped1776 flabelliform1777 obovate1785 button-shaped1791 clavate1803 placentiform?a1808 obovoid1819 valviform1819 constricted1826 vulviform1829 mitrate1836 bipenniform1842 sandaliform1848 scopiform1852 obclavate1856 obcordiform1857 oboval1857 utriform1860 broadsword-shaped1870 placentoid1885 hypsiloid1886 1681 N. Grew Musæum Regalis Societatis i. ii. 103 The Snout [sc. of the River-Whale] flat. Both the Chaps before of a Semilunar figure. 1719 J. Quincy Lexicon Physico-medicum (1722) Semilunar Valves, thus called from their resemblance in shape to a half moon. 1728 E. Chambers Cycl. Semi-Lunar Valves,..are little Valves or Membranes of a Semilunar Figure, placed in the Orifice of the Pulmonary Artery, to prevent the Relapse of the Blood into the Heart at the time of its Dilatation. 1753 Chambers's Cycl. Suppl. (at cited word) All the species of the semi~lunar shells have few convolutions. 1765 Philos. Trans. 1764 (Royal Soc.) 54 180 In the abdomen this nerve unites with the par vagum of the right side, and together form the great semi-lunar Ganglion. 1769 T. Pennant in Philos. Trans. 1768 (Royal Soc.) 58 93 Between the toes is a strong semilunar membrane. 1831 R. Knox tr. H. Cloquet Syst. Human Anat. (ed. 2) 133 The Semilunar Bone (os Lunatum), is smaller and less elongated than the scaphoid. Its upper surface is convex and smooth. 1839–47 Todd's Cycl. Anat. & Physiol. III. 84/2 The lacrymal caruncle and semilunar fold. 1840 E. Wilson Anatomist's Vade Mecum (1842) 69 The semilunar bone may be known by having a crescentic concavity, and a somewhat crescentic outline. 1852 J. D. Dana U.S. Exploring Exped.: Crustacea Pt. I 474 The nasal opening in males is irregularly semilunar. 1871 C. Darwin Descent of Man I. i. 23 In man..[the third eyelid] exists..as a mere rudiment, called the semilunar fold. 1873 St. G. Mivart Lessons Elem. Anat. v. 183 Two inter-articular cartilages, called semilunar, are..interposed between the cartilaginous articular surfaces of the femur and those of the tibia. B. n. A semilunar bone, valve, etc. ΘΚΠ the world > life > the body > structural parts > bone or bones > types of bones > [noun] > according to shape seed-bone1615 pessulus1805 sesamoid1854 colonnette1872 scale1875 semilunar1893 1893 S. J. Gee Auscult. & Percuss. i. iii. 50 That the closure of the aortic semilunars precedes that of the pulmonary semilunars. This entry has not yet been fully updated (first published 1911; most recently modified version published online June 2022). < adj.n.1598
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