Share this entry

Share this page

glochidium

Syllabification: glo·chid·i·um
Pronunciation: /ɡlōˈkidēəm
 
/

Definition of glochidium in English:

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.
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.

Origin

late 19th century: modern Latin, based on Greek glōkhis 'arrowhead'.

Definition of glochidium in:

Share this entry

Share this page

 

What do you find interesting about this word or phrase?

Comments that don't adhere to our Community Guidelines may be moderated or removed.

Get more from Oxford Dictionaries

Subscribe to remove ads and access premium resources

Word of the day raconteur
Pronunciation: ˌrakˌänˈtər
noun
a person who tells anecdotes skillfully and amusingly…