[glo.chid.i.um] n, pl -ia [NL, fr. Gk glochis projecting point + NL -idium] (1882): the larva of a freshwater mussel (family Unionidae) that develops as an external parasite on fish
GLOCHIDIUM
Meaning of GLOCHIDIUM in English
Merriam-Webster English vocab. Английский словарь Merriam Webster. 2012