achene
orakene
(əˈkiːn
) noun
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 (əˈkiːnɪəm)
[C19: from New Latin achaenium that which does not yawn or open, from a-1 + Greek khainein to yawn]
> aˈchenial or aˈkenial
adjective