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a·chenealso a·kene (ā-kēn′)
A small, dry, indehiscent one-seeded fruit with a thin wall, as in a sunflower.
[New Latin achēnium : Greek a-, without; see a-1 + Greek khainein, to yawn.]
a·che′ni·al (-nē-əl) adj.
(Botany) a dry one-seeded indehiscent fruit with the seed distinct from the fruit wall. It may be smooth, as in the buttercup, or feathery, as in clematis. Also called: achenium
[C19: from New Latin achaenium that which does not yawn or open, from a-1 + Greek khainein to yawn]
aˈchenial, aˈkenial adj
any small, dry, hard, one-seeded, indehiscent fruit.