Ctenidium (mollusc), (plural: ctenidia), a comb-like gill, part of the respiratory system of gastropods and bivalves
Ctenidium, (plural: ctenidia), a row of peg-like spines in some insects (pronotal ctenidium; genal ctenidium)
Ctenidium (moss), a genus of mosses in the family Hylocomiaceae
This disambiguation page lists articles associated with the same title.
If an internal link led you here, you may wish to change the link to point directly to the intended article.