cotyledon

play
noun cot·y·le·don \ˌkä-tə-ˈlē-dən\

Definition of cotyledon

  1. 1 :  a lobule of the mammalian placenta

  2. 2 :  the first leaf or one of the first pair or whorl of leaves developed by the embryo of a seed plant or of some lower plants (as ferns)

cotyledonary

play \-ˈlē-də-ˌner-ē\ adjective

Origin and Etymology of cotyledon

New Latin, from Greek kotylēdōn cup-shaped hollow, from kotylē cup, anything hollow


First Known Use: 1540


Medical Dictionary

cotyledon

play
noun cot·y·le·don \ˌkät-əl-ˈēd-ən\

Medical Definition of cotyledon

  1. 1:  a lobule of a mammalian placenta

  2. 2:  the first leaf or one of the first pair or whorl of leaves developed by the embryo of a seed plant or of some lower plants (as ferns)

cotyledonary

\-ˈēd-ən-ˌer-ē\play adjective

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