[in.du.si.um] n, pl -sia [NL, fr. L, tunic] (1807): an investing outgrowth or membrane: as a: an outgrowth of a fern frond that invests the sori b: the annulus of a fungus esp. when large and full
INDUSIUM
Meaning of INDUSIUM in English
Merriam-Webster English vocab. Английский словарь Merriam Webster. 2012