English-Thai Dictionary

cotyledon

N ใบเลี้ยง (พืช  ใบ ที่ แตก ออกจาก เมล็ด เป็น ใบ แรก  seed leaf bai-liang

 

Webster's 1828 Dictionary

COTYLE

n.[Gr. ] The cavity of a bone which receives the end of another in articulation.

 

COTYLEDON

n.[Gr. , a hollow or cavity. ] 1. In botany, the perishable lobe or placenta of the seeds of plants. It involves and nourishes the embryo plant, and then perishes. Some seeds have two lobes; others one only, and others none.
2. In anatomy, a little glandular body adhering to the chorion of some animals.
3. A genus of plants, navel-wort, or kidney-wort, of several species.

 

COTYLEDONOUS

a.Pertaining to cotyledons; having a seed-lobe.

 

Webster's 1913 Dictionary

COTYLEDON

Cot `y *le "don (kt `-l "dn ), n. Etym: [Gr. Cotyle. ]

 

1. (Anat. )

 

Defn: One of the patches of villi found in some forms of placenta.

 

2. (Bot. )

 

Defn: A leaf borne by the caulicle or radicle of an embryo; a seed leaf.

 

Note: Many plants, as the bean and the maple, have two cotyledons, the grasses only one, and pines have several. In one African plant (Welwitschia ) the cotyledons are permanent and grow to immense proportions.

 

COTYLEDONAL

COTYLEDONAL Cot `y *led "on *al (kt `-ld "n-al ), a.

 

Defn: Of, pertaining to, or resembling, a cotyledon.

 

COTYLEDONARY

COTYLEDONARY Cot `y *led "on *a *ry (--r ), a.

 

Defn: Having a cotyledon; tufted; as, the cotyledonary placenta of the cow.

 

COTYLEDONOUS

COTYLEDONOUS Cot `y *led "on *ous (-s; 277 ), a.

 

Defn: Of or pertaining to a cotyledon or cotyledons; having a seed lobe.

 

New American Oxford Dictionary

cotyledon

cot y le don |ˌkätlˈēdn ˌkɑdəˈlidn | ▶noun Botany an embryonic leaf in seed-bearing plants, one or more of which are the first leaves to appear from a germinating seed. DERIVATIVES cot y le don ar y |-ˈēdnˌerē |adjective ORIGIN mid 16th cent. (denoting a patch of villi on the placenta of mammals ): from Latin, ‘navelwort ’ (which has cup-shaped leaves ), from Greek kotulēdōn ‘cup-shaped cavity, ’ from kotulē ‘cup. ’

 

Oxford Dictionary

cotyledon

cotyledon |ˌkɒtɪˈliːd (ə )n | ▶noun 1 Botany an embryonic leaf in seed-bearing plants, one or more of which are the first leaves to appear from a germinating seed. 2 a succulent plant of the stonecrop family, some kinds of which are grown as ornamentals. ●Genus Cotyledon and related genera, family Crassulaceae: several species. DERIVATIVES cotyledonary adjective ORIGIN mid 16th cent. (denoting a patch of villi on the placenta of mammals ): from Latin, ‘navelwort ’ (which has cup-shaped leaves ), from Greek kotulēdōn ‘cup-shaped cavity ’, from kotulē ‘cup ’.

 

French Dictionary

cotylédon

cotylédon n. m. nom masculin Réserve nutritive des plantes à graines. Note Orthographique cot y lédon.