- A fungus known to have both sexual and asexual stages in its life cycle.
- Any of various fungi that have both a sexual phase and an asexual phase and reproduce by both sexually and asexually produced spores. Ascomycetes, basidiomycetes, and zygomycetes are perfect fungi. Compare deuteromycete.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.