Achene definition

ā-kēn
A small, dry, one-seeded fruit in which the seed sits free inside the hollow fruit, attached only by the stem of the ovule. Achenes are indehiscent (they do not split open when ripe). The fruits of the sunflower and elm are achenes.
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A small, dry, indehiscent one-seeded fruit with a thin wall, as in a sunflower.
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Any small, dry, indehiscent fruit, as the strawberry, with one seed which is attached to the ovary wall at only one point.
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(botany) A small, dry, indehiscent fruit, containing a single seed, as in the buttercup.
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Other Word Forms

Noun

Singular:
achene
Plural:
achenes

Origin of achene

  • New Latin achēnium Greek a- without a–1 Greek khainein to yawn

    From American Heritage Dictionary of the English Language, 5th Edition

  • From French akène and its source, Latin achena, from Ancient Greek ἀ- (a-, “a-”) + χαίνω (chainō, “to gape”).

    From Wiktionary