One of any savage race that dwells in caves, instead of constructing dwellings; a cave dweller. Most of the primitive races of man were troglodytes.
- A member of a fabulous or prehistoric race of people that lived in caves, dens, or holes.
- A person considered to be reclusive, reactionary, out of date, or brutish.
- An anthropoid ape, such as a gorilla or chimpanzee.
- An animal that lives underground, as an ant or a worm.