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词汇 nexine
释义

Definition of nexine in English:

nexine

noun ˈnɛksʌɪnˈnɛksɪnˈnɛksiːn
Botany

  • In the wall of a pollen grain or spore: the inner layer of the exine, lacking the sculpturing characteristic of the outermost layer (the sexine).

Origin

1940s. From n- (in non-sculptured) + exine: see quot. 1948.

Definition of nexine in US English:

nexine

noun
Botany

  • In the wall of a pollen grain or spore: the inner layer of the exine, lacking the sculpturing characteristic of the outermost layer (the sexine).

Origin

1940s. From n- (in non-sculptured) + exine: see quot. 1948.
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