Definition of abscisin in English:

abscisin

noun

Biochemistry historical
  • 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

/əbˈsɪsɪn//abˈsɪsɪn/