exine

noun
ex·​ine | \ˈek-ˌsēn, -ˌsīn\

Definition of exine 

: the outer of the two major layers forming the walls of some spores and especially pollen grains

First Known Use of exine

1839, in the meaning defined above

History and Etymology for exine

International Scientific Vocabulary ex- + in- fibrous tissue, from Greek in-, is tendon

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Dictionary Entries near exine

exility

eximious

exinanition

exine

exinite

exist

existence

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Time Traveler for exine

The first known use of exine was in 1839

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Britannica.com: Encyclopedia article about exine

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