Definitions

1. noun

A small, often microscopic tooth or tooth-like structure, particularly in the mouthparts of certain invertebrates such as arthropods and mollusks.

“The study of the ctene revealed new insights into the feeding habits of the ancient arthropod.”

2. noun

A small pointed tooth or projection found in the mouthparts of certain animals.

“The microscope revealed a tiny ctene in the mouth of the insect.”