The Collaborative International Dictionary
Ichthyodorulite
Ichthyodorulite \Ich`thy*o*dor"u*lite\, n. [Gr. 'ichqy`s, -y`os, a fish + ? a spear + -lite.] (Zo["o]l.) One of the spiny plates found on the back and tail of certain skates.
Wiktionary
ichthyodorulite
n. (context zoology English) One of the spiny plates found on the back and tail of certain skates.