Definitions

1. adjective

Relating to or characteristic of the infraorder Simiiformes, which includes monkeys and apes, especially those of the family Cercopithecidae.

“The catarrhinian monkeys in the zoo were fascinating to watch.”

2. noun

A member of the infraorder Simiiformes, especially those of the family Cercopithecidae.

“The catarrhinian population in the forest was thriving.”