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单词 acuminate
释义

acuminate

/əˈkjuːmɪnət /
adjective Biology
(Of a plant or animal structure, e.g. a leaf) tapering to a point.In place of these, we analyzed timing of anthesis, presence or absence of seed wings and pistillate racemes, and prevalence of acuminate leaf apices and attenuate leaf bases....
  • The orbicular-shaped mutant leaves are further characterized by the leaf apex, which is retuse in contrast to the acuminate apex of leaves of wild-type plants.
  • The radicle and plumule form a small subglobose unit, the embryonic axis, whose acuminate lower end extends into the micropyle.

Origin

Late 16th century: from late Latin acuminatus 'pointed', from acuminare 'sharpen to a point', from acuere 'sharpen' (see acute).

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更新时间:2024/11/11 7:18:15