Definition of pycnium in English:

pycnium

noun

Mycology
  • In rust fungi: a flask-shaped fruiting body producing haploid spores and receptive hyphae, which after fertilization results in the formation of an aecium; a spermogonium.

Origin

Early 20th century. From ancient Greek πυκνός thick, dense + -ium.

Pronunciation

pycnium

/ˈpɪknɪəm/