noun (plural glochidia /-ˈkidēə/)Zoology
A parasitic larva of certain freshwater bivalve mollusks, which attaches itself by hooks and suckers to the fins or gills of fish.
More example sentences
- The glochidia larvae of some freshwater mussels can be serious parasites of fish, and some marine bivalves bore through wood, causing damage to wooden ships, pilings, and other wood structures.
- Unionid embryos spend the first stage of development in the marsupial portion of the female unionid's gills, where they develop into glochidia, the parasitic stage.
- Zygotes develop within the mantle cavity and glochidia larvae are released in the early summer.
late 19th century: modern Latin, based on Greek glōkhis 'arrowhead'.
Definition of glochidium in:
- The British & World English dictionary