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词汇 rostellum
释义

Definition of rostellum in English:

rostellum

noun rɒˈstɛləm
  • 1In certain plants, especially orchids: a beak-like projection at the base of the stigma which serves to separate the stigma and anther and to prevent self-pollination of the plant.

  • 2The protruding forepart of the head of a tapeworm, typically armed with hooklets or spines.

Origin

Mid 18th century (in an earlier sense). From post-classical Latin rostellum, specific uses of classical Latin rostellum small beak or snout (Pliny) from rostrum beak + -ellum.

Definition of rostellum in US English:

rostellum

nounrɒˈstɛləm
  • 1In certain plants, especially orchids: a beak-like projection at the base of the stigma which serves to separate the stigma and anther and to prevent self-pollination of the plant.

  • 2The protruding forepart of the head of a tapeworm, typically armed with hooklets or spines.

Origin

Mid 18th century (in an earlier sense). From post-classical Latin rostellum, specific uses of classical Latin rostellum small beak or snout (Pliny) from rostrum beak + -ellum.

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