Meaning of abstriction

ab•stric•tion

Pronunciation: (ab-strik'shun), [key]
— n. Mycol.
  1. a method of spore formation in fungi in which successive portions of the sporophore are cut off through the growth of septa; abjunction.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.