cotyledonn.

/kɒtɪˈliːdən/

Forms: In 1500s cotilidon.

Etymology: < Latin cotylēdon the plant navelwort or pennywort, < Greek κοτυληδών ( < κοτύλη : see cotyle n.) a cup-shaped cavity, the sucker of an octopus, also in senses 1, 2 below. Sense 1 was used in French by Paré (16th cent.). The botanical sense 3 was introduced (in modern Latin) by Linnæus.

1. Physiology. One of the separate patches of villi on the fœtal chorion of Ruminants; also applied to the corresponding vascular portions of the uterine mucous membrane.Formerly applied also to the less separated lobules of the human and other discoid or diffuse placentæ.

ΘΚΠ

the world > animals > mammals > group Placentalia > [noun] > member of > parts of

cotyledon1540

the world > life > biology > biological processes > procreation or reproduction > embryo or fetus > membranes, etc., of embryo or fetus > [noun] > membranes enclosing

houve1530

kell1530

cotyledon1540

chorion1545

coif1545

hoop-caul1545

shirt1545

caul1547

sillyhow1574

biggin1611

guard1611

allantoides1615

allantois1615

allantoid1633

amnios1657

amnion1667

heam1681

vitta1693

indusium1706

silly-hood1836

the world > animals > mammals > group Ungulata (hoofed) > group Ruminantia (sheep, goats, cows, etc.) > [noun] > ruminant > parts of > cotyledon

cotyledon1540

acetabulum1615

saucer1662

acetable1689

1540 R. Jonas tr. E. Roesslin Byrth of Mankynde i. f. xli^v Cotilydons, that is the vaynes and synnues by the which the conception and feature is tyed and fastened in the matrice.

1634 T. Johnson tr. A. Paré Chirurg. Wks. iii. xxxiv. 129 The Cotyledones [of the Uterus]..are nothing else than the orifices and mouthes of the veines, ending in that place.

1684 tr. T. Bonet Guide Pract. Physician xiv. 513 Cassia..relaxeth the Womb, and weakens the Cotyledons.

1787 J. Hunter in Philos. Trans. (Royal Soc.) 77 444 Without any small protuberances for the cotyledons to form upon, as in those of ruminating animals.

1869 Huxley Introd. Classif. Animals 97 A foetal cotyledon half separated from the maternal cotyledon of a cow.

2. Botany. A genus of plants of the family Crassulaceæ, having thick succulent peltate leaves; the British species is C. Vmbilicus, popularly called Navelwort or Pennywort.

ΘΚΠ

the world > plants > particular plants > plants and herbs > according to family > Crassulaceae (stonecrop and allies) > [noun] > navelwort

pennywortc1300

wall penny-grassa1400

navelwortc1450

wall penny grass1562

Venus' navel1592

hipwort1597

sea-navel1597

sea-navelwort1597

sea-pennywort1597

Venus' garden1597

cotyledon1601

kidneywort1640

Venus's navelwort1678

penny pie1707

acetabulum1727

penny leaf1782

pancakes1882

1601 P. Holland tr. Pliny Hist. World II. 237 Cotyledon, named in Latine Vmbilicus Veneris, is a pretty little herb, hauing..a leafe thick and fatty, growing hollow, like to the concauity wherin the huckle-bone turneth, and therupon it took the foresaid name in Greek.

1736 Compl. Family-piece ii. iii. 331 We have now..Cotyledons, Chrysanthemums.

1861 A. Pratt Flowering Plants & Ferns Great Brit. II. 319 Cotyledon (Penny-wort).

3. Botany. The primary leaf in the embryo of the higher plants (Phanerogams); the seed-leaf.The number of cotyledons in the seed serves as an important basis of classification of Angiosperms into monocotyledons (see monocotyledon n.) (= endogens, endogen n.) with one cotyledon, and dicotyledons (see dicotyledon n.) (= exogens, exogen n.) with two; in Gymnosperms the number varies, being usually more than two.[The term was introduced by Linnæus, and was esp. applied by him to those seed-leaves which are not themselves depositaries of nutriment, but act as organs of absorption, in which he saw an analogy to the function of the cotyledons of the placenta (sense 1). Cf. Gaertner De Fructibus (1788) clxii.]

ΘΚΠ

the world > plants > part of plant > reproductive part(s) > seed > [noun] > parts of > cotyledon or seed-leaf

seed leafa1682

seedling leaf1699

ear leaf1718

seed lobe1720

deaf-ear1725

cotyledon1776

1751 C. Linnaeus Philos. Bot. 54 Cotyledon, corpus laterale seminis, bibulum, caducum.

1751 C. Linnaeus Philos. Bot. 89 Cotyledones animalium proveniunt e Vitello ovi, cui punctum vitæ innascitur; ergo Folia seminalia plantarum, quæ Corculum involverunt, iidem sunt.]

1776 J. Lee Introd. Bot. (ed. 3) 410 The Seeds have two Cotyledons.

1845 J. Lindley School Bot. (1858) i. 18 The embryo consists of three parts, the radicle, or young root, the cotyledons, or young leaves, and the plumule, or young stem.

1875 A. W. Bennett & W. T. T. Dyer tr. J. von Sachs Text-bk. Bot. ii. v. 443 In some Cupressineæ there are from three to nine, and in some Araucarieæ whorls of four cotyledons; while among the Abietineæ there are..four or even as many as fifteen.

This entry has not yet been fully updated (first published 1893; most recently modified version published online December 2020).

单词	cotyledon
释义	cotyledonn. /kɒtɪˈliːdən/ Forms: In 1500s cotilidon. Etymology: < Latin cotylēdon the plant navelwort or pennywort, < Greek κοτυληδών ( < κοτύλη : see cotyle n.) a cup-shaped cavity, the sucker of an octopus, also in senses 1, 2 below. Sense 1 was used in French by Paré (16th cent.). The botanical sense 3 was introduced (in modern Latin) by Linnæus. 1. Physiology. One of the separate patches of villi on the fœtal chorion of Ruminants; also applied to the corresponding vascular portions of the uterine mucous membrane.Formerly applied also to the less separated lobules of the human and other discoid or diffuse placentæ. ΘΚΠ the world > animals > mammals > group Placentalia > [noun] > member of > parts of cotyledon1540 the world > life > biology > biological processes > procreation or reproduction > embryo or fetus > membranes, etc., of embryo or fetus > [noun] > membranes enclosing houve1530 kell1530 cotyledon1540 chorion1545 coif1545 hoop-caul1545 shirt1545 caul1547 sillyhow1574 biggin1611 guard1611 allantoides1615 allantois1615 allantoid1633 amnios1657 amnion1667 heam1681 vitta1693 indusium1706 silly-hood1836 the world > animals > mammals > group Ungulata (hoofed) > group Ruminantia (sheep, goats, cows, etc.) > [noun] > ruminant > parts of > cotyledon cotyledon1540 acetabulum1615 saucer1662 acetable1689 1540 R. Jonas tr. E. Roesslin Byrth of Mankynde i. f. xli^v Cotilydons, that is the vaynes and synnues by the which the conception and feature is tyed and fastened in the matrice. 1634 T. Johnson tr. A. Paré Chirurg. Wks. iii. xxxiv. 129 The Cotyledones [of the Uterus]..are nothing else than the orifices and mouthes of the veines, ending in that place. 1684 tr. T. Bonet Guide Pract. Physician xiv. 513 Cassia..relaxeth the Womb, and weakens the Cotyledons. 1787 J. Hunter in Philos. Trans. (Royal Soc.) 77 444 Without any small protuberances for the cotyledons to form upon, as in those of ruminating animals. 1869 Huxley Introd. Classif. Animals 97 A foetal cotyledon half separated from the maternal cotyledon of a cow. 2. Botany. A genus of plants of the family Crassulaceæ, having thick succulent peltate leaves; the British species is C. Vmbilicus, popularly called Navelwort or Pennywort. ΘΚΠ the world > plants > particular plants > plants and herbs > according to family > Crassulaceae (stonecrop and allies) > [noun] > navelwort pennywortc1300 wall penny-grassa1400 navelwortc1450 wall penny grass1562 Venus' navel1592 hipwort1597 sea-navel1597 sea-navelwort1597 sea-pennywort1597 Venus' garden1597 cotyledon1601 kidneywort1640 Venus's navelwort1678 penny pie1707 acetabulum1727 penny leaf1782 pancakes1882 1601 P. Holland tr. Pliny Hist. World II. 237 Cotyledon, named in Latine Vmbilicus Veneris, is a pretty little herb, hauing..a leafe thick and fatty, growing hollow, like to the concauity wherin the huckle-bone turneth, and therupon it took the foresaid name in Greek. 1736 Compl. Family-piece ii. iii. 331 We have now..Cotyledons, Chrysanthemums. 1861 A. Pratt Flowering Plants & Ferns Great Brit. II. 319 Cotyledon (Penny-wort). 3. Botany. The primary leaf in the embryo of the higher plants (Phanerogams); the seed-leaf.The number of cotyledons in the seed serves as an important basis of classification of Angiosperms into monocotyledons (see monocotyledon n.) (= endogens, endogen n.) with one cotyledon, and dicotyledons (see dicotyledon n.) (= exogens, exogen n.) with two; in Gymnosperms the number varies, being usually more than two.[The term was introduced by Linnæus, and was esp. applied by him to those seed-leaves which are not themselves depositaries of nutriment, but act as organs of absorption, in which he saw an analogy to the function of the cotyledons of the placenta (sense 1). Cf. Gaertner De Fructibus (1788) clxii.] ΘΚΠ the world > plants > part of plant > reproductive part(s) > seed > [noun] > parts of > cotyledon or seed-leaf seed leafa1682 seedling leaf1699 ear leaf1718 seed lobe1720 deaf-ear1725 cotyledon1776 1751 C. Linnaeus Philos. Bot. 54 Cotyledon, corpus laterale seminis, bibulum, caducum. 1751 C. Linnaeus Philos. Bot. 89 Cotyledones animalium proveniunt e Vitello ovi, cui punctum vitæ innascitur; ergo Folia seminalia plantarum, quæ Corculum involverunt, iidem sunt.] 1776 J. Lee Introd. Bot. (ed. 3) 410 The Seeds have two Cotyledons. 1845 J. Lindley School Bot. (1858) i. 18 The embryo consists of three parts, the radicle, or young root, the cotyledons, or young leaves, and the plumule, or young stem. 1875 A. W. Bennett & W. T. T. Dyer tr. J. von Sachs Text-bk. Bot. ii. v. 443 In some Cupressineæ there are from three to nine, and in some Araucarieæ whorls of four cotyledons; while among the Abietineæ there are..four or even as many as fifteen. This entry has not yet been fully updated (first published 1893; most recently modified version published online December 2020). < n.1540
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