glochidium[glō kid′ē əm]
noun pl. glochidia
- Bot. a barbed hair or bristle, as on certain cactuses or on the spore masses of ferns
- Zool. the parasitic larval stage of freshwater mussels (family Unionidae) which infests the gills, etc. of many fishes
Origin: ModL < Gr glōchis, point (see gloss) + ModL -idium, dim. suffix < Gr -idion
- glochidiate adjective
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noun pl. glo·chid·i·a
- Zoology The parasitic larva of certain freshwater mussels of the family Unionidae, having hooks for attaching to the gills or other external parts of a host fish.
- Botany Variant of glochid.
Origin: New Latin glōchidium : Greek glōkhīs, barb of an arrow + Latin -idium, diminutive suff. (from Greek -idion).
- glo·chidˈi·ate adjective