acotyledon
noun
acot·y·le·don
ˌā-ˌkä-tə-ˈlē-dᵊn
plural -s
: a plant without cotyledons (as the dodder)
acotyledonous
adjective
ˌā-ˌkä-tə-ˈlē-də-nəs
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Merriam-Webster unabridged
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