simiannounmasculine/siˈmi.u/lowsí·mi·oPortuguesEnglishEspanolFrancaisDefinitionA primate of the infraorder Simiiformes, which includes monkeys and apes (including humans).The gorilla is a large simian.The study compared the behavior of various simians.synprimateapemonkeyCommon collocationsgreat simiansimian behaviorsimian evolutionEtymologyDo latim 'simius', de 'simia'.Related wordssímiosimiescosimiiformes