noun🔗ShareA primate that is not a monkey or an ape, generally nocturnal with large eyes and ears. Such primates were formerly grouped in the suborder Prosimii, but are now considered a paraphyletic group and not a clade."Many prosimians, like lemurs and lorises, are active at night, making them difficult to spot in the daytime zoo. "animalbiologyorganismnaturescienceChat with AIVocabulary GamePractice Reading