Denticle refers to a small tooth, scale or projection. Some synonyms for denticle include toothlet, cusp, spine, point, or projection. The word denticle is most commonly used in the context of sharks and other fish that have small sharp projections on their skin or jaws. Other synonyms that can be used in this context include serration, jag, sawlike tooth, or blade. The word denticle can also be used in a more metaphorical sense, where it refers to anything that is small and sharp, such as a quip or a quick remark. In this context, other synonyms such as barb, sting or jab can also be used to describe a small and sharp verbal comment.