Definition of abscisin in English:

abscisin

noun

Biochemistry
  • Either of two substances that promote leaf abscission, (a) (more fully "abscisin I") one isolated from cotton bolls (now historical); (b) (more fully "abscisin II") = "abscisic acid".

Origin

1960s. From abscis- + -in.

Pronunciation

abscisin

/abˈsɪsɪn//əbˈsɪsɪn/