cotyledon
noun
cot·y·le·don
ˌkä-tə-ˈlē-dᵊn 
plural cotyledons
1
: the first leaf or one of the first pair or whorl of leaves developed by the embryo of a seed plant see seedling illustration
2
: a small lobe of the mammalian placenta that facilitates the delivery of oxygen and nutrients to the fetus
Dictionary Entries Near cotyledon
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“Cotyledon.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/cotyledon. Accessed 30 Nov. 2024.
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cotyledon
noun
cot·y·le·don
ˌkät-ᵊl-ˈēd-ᵊn
: the first leaf or one of the first leaves developed by the embryo of a seed plant that is usually folded within the seed until germination and serves as a storehouse of food
called also seed leaf
Medical Definition
cotyledon
noun
cot·y·le·don
ˌkät-ᵊl-ˈēd-ᵊn
1
: a lobule (see lobule sense 2) of a mammalian placenta that facilitates the delivery of oxygen and nutrients to the fetus
2
: the first leaf or one of the first pair or whorl of leaves developed by the embryo of a seed plant
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