[hy.me.ni.um] n, pl -nia or -niums [NL, fr. Gk hymen] (1830): a spore-bearing layer in fungi consisting of a group of asci or basidia often interspersed with sterile structures
HYMENIUM
Meaning of HYMENIUM in English
Merriam-Webster English vocab. Английский словарь Merriam Webster. 2012