Cotyledon meaning

kŏtl-ēdn
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The first single leaf or one of the first pair of leaves produced by the embryo of a flowering plant, or any of various similar structures found in conifers.
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The definition of a cotyledon is the first leaf or set of leaves that sprout from a seed.

An example of a cotyledon is the first two leaves that sprout from a sunflower seed.

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A leaf of the embryo of a seed plant, which upon germination either remains in the seed or emerges, enlarges, and becomes green.
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One of the lobules constituting the uterine side of the mammalian placenta, consisting mainly of a rounded mass of villi.
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One of the lobules constituting the uterine side of the mammalian placenta, consisting mainly of a rounded mass of villi.
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A leaf of the embryo of a seed plant, which upon germination either remains in the seed or emerges, enlarges, and becomes green.
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A leaf of the embryo of a seed-bearing plant. Most cotyledons emerge, enlarge, and become green after the seed has germinated. Cotyledons either store food for the growing embryo (as in monocotyledons) or absorb food that has been stored in the endosperm (as in other angiosperms) for eventual distribution to the growing parts of the embryo.
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(botany) The leaf of the embryo of a seed-bearing plant; after germination it becomes the first leaves of the seedling.
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Origin of cotyledon

  • Latin cotylēdōn navelwort from Greek kotulēdōn from kotulē hollow object

    From American Heritage Dictionary of the English Language, 5th Edition

  • From Latin cotyledon, from Ancient Greek κοτυληδών (kotulēdōn, “cup-shaped cavity”), from κοτύλη (kotulē, “cup”).

    From Wiktionary