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extine - 4 dictionary results

ex⋅tine

[ek-steen, -stahyn]
–noun Botany.
exine.

Origin:
1825–35; < L ext(imus) most outward + -ine 1

ex⋅ine

[ek-seen, -sahyn]
–noun Botany.
the outer coat of a spore, esp. a pollen grain.
Also, extine.


Origin:
1880–85; ex- 1 + -ine 1

Extine

Ex"tine\ (?; 104), n. [L. exter on the outside. Cf. Intine.] (bot.) The outer membrane of the grains of pollen of flowering plants.
extine   (ěk'stēn', -stīn')  Pronunciation Key 
See exine.
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