What is another word for placoid?
Pronunciation: [plˈakɔ͡ɪd] (IPA) 
Placoid is a term used to describe a specific type of scale found on cartilaginous fish such as sharks and rays. However, if one were to search for synonyms for the word "placoid," some possible options include "dermal tooth," "odontode," or "dermal denticle." These terms refer to the small tooth-like projections on the skin of these fishes which serve as protective armour and aid in swimming. Other synonyms could include "squamule," "cuticular spine," or "epidermal scale," which all describe similar structures found on fishes and other aquatic animals. The use of different synonyms provides a variety of ways to describe and understand these unique features of cartilaginous fish.
