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English word nyctinasty comes from English -nasty ((botany) relating to a nastic change.), English -i-, English nyct- (Related to night or darkness.)
-nasty (English)
(botany) relating to a nastic change.
-i- (English)
(pharmacology) a monoclonal antibody derived from a non-human primate source (in coining neologisms) A vowel inserted interconsonantally between morphemes of Latinate origin in order to ease pronunciation (an anaptyxis, a linking vowel).
nyct- (English)
Related to night or darkness.
nyctinasty (English)
(botany) The movement of leaves or petals in response to darkness; the closing of a flower at night.