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Webster 1913 Edition
Cotyledon
Cotˊy-le′don
(k?tˊ?-l?′d?n)
, Noun.
[Gr.[GREEK][GREEK][GREEK] a cupshaped hollow, fr. [GREEK][GREEK][GREEK]. See
Cotyle
.] 1.
(Anat.)
One of the patches of villi found in some forms of placenta.
2.
(Bot.)
A leaf borne by the caulicle or radicle of an embryo; a seed leaf.
☞ 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. Webster 1828 Edition
Cotyledon
COTYLEDON
,Noun.
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.Definition 2024
cotyledon
cotyledon
See also: cotylédon
English
Noun
cotyledon (plural cotyledons)
- (botany) The leaf of the embryo of a seed-bearing plant; after germination it becomes the first leaves of the seedling.
Synonyms
Derived terms
Translations
leaf of the embryo of a seed-bearing plant
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