perfect fungus [pûr′fĭkt] n.
- A fungus known to have both sexual and asexual stages in its life cycle.
perfect fungus in Science perfect fungus
- 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.