A flask-shaped structure containing conidia, found in certain fungi,.
A saclike spore case producing asexual spores (conidia) on the inside, found in certain ascomycetes and imperfect fungi.
Part or all of this entry has been imported from the 1913 edition of Webster's Dictionary, which is now free of copyright and hence in the public domain. The imported definitions may be significantly out of date, and any more recent senses may be completely missing.
Origin of pycnidium
New Latin Greek puknos thick Latin -idium diminutive suff. (from Greek -idion)