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Webster 1913 Edition

Exostome

Ex′o-stome

,

Noun.

[

Exo-

+ Gr. [GREEK] mouth :cf. F.

exostome

.]

(Bot.)

The small aperture or foremen in the outer coat of the ovule of a plant.

Definition 2025

exostome

exostome

English

Noun

exostome ‎(plural exostomes)

(botany) The small aperture or foramen in the outer coat of the ovule of a plant.