a phase in the life cycle of certain fungi in which either no spores or asexual spores, as conidia, are produced.
Origin of imperfect stage
First recorded in 1890–95
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Medicine definitions for imperfect stage
The asexual phase in the life cycle of a fungus.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.