to break off or separate; in botany, to sever or constrict at the base of a structure.
From Latin abstrictus, past participle of abstringere 'to bind tight' or 'to draw away.' A specialized botanical term.
Fungi 'abstrict' their spores—creating a tiny pinch point that breaks to release them into the air—a word that sounds violent but describes an elegant biological mechanism.
Complete word intelligence in one call. Free tier — 50 lookups/day.