English Explanatory Dictionary

cotyledon

English dictionary entry

Meanings

noun
  1. Each of the patches of villi on the foetal chorion in the placenta of ruminants and some other mammals.
  2. The leaf of the embryo of a seed-bearing plant; after germination it becomes the first leaves of the seedling.

Pronunciation

/ˌkɒt.ɪˈliː.dən/ LL-Q1860 (eng)-Vealhurl-cotyledon.wav /ˌkɑt.əˈliː.dən/

Word forms

cotyledon cotyledons

Etymology

From Latin cotylēdōn, from Ancient Greek κοτυληδών (kotulēdṓn, “cup-shaped cavity”), from κοτύλη (kotúlē, “cup”).

Derived words

acotyledon coconut cotyledon cotyledonal cotyledonary cotyledonoid cotyledonous dicotyledon epicotyl hypocotyl microcotyledon monocotyledon polycotyledon tricotyledon
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