cotyledon

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

Definition of cotyledon 

1 : a lobule of the mammalian placenta

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 (such as ferns) — see seedling illustration

Other Words from cotyledon

cotyledonary \ˌkä-​tə-​ˈlē-​də-​ˌner-​ē \ adjective

First Known Use of cotyledon

1540, in the meaning defined at sense 1

History and Etymology for cotyledon

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

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Dictionary Entries near cotyledon

-cotyl

cotyla

cotylar

cotyledon

cotyledonal

cotyliform

cotyligerous

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The first known use of cotyledon was in 1540

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More Definitions for cotyledon

cotyledon

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

Medical Definition of cotyledon 

1 : a lobule of a mammalian placenta

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)

Other Words from cotyledon

cotyledonary \-​ˈēd-​ᵊn-​ˌer-​ē \ adjective

More from Merriam-Webster on cotyledon

Britannica.com: Encyclopedia article about cotyledon

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