Glochidium

2 definitions found

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  Glochidium \Glo*chid"i*um\, n.; pl. {Glochidia}. [NL., fr. Gr. ?
     the point of an arrow.] (Zool.)
     The larva or young of the mussel, formerly thought to be a
     parasite upon the parent's gills.
     [1913 Webster]



From WordNet (r) 2.0 [wn]:

  glochidium
       n : a barbed spine or bristle (often tufted on cacti) [syn: {glochid}]
       [also: {glochidia} (pl), {glochidcia} (pl)]