Definition of nexine in 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.

Pronunciation

nexine

/ˈnɛksʌɪn//ˈnɛksɪn//ˈnɛksiːn/