Simia - the class of animals consisting of the apes and monkeys, and more specifically of the tailless apes only, or of certain kinds of these, as the orang-utan; also (with lower-case initial), an an, inimlaadilised (Simioidea, Anthropoidea), esikloomaliste seltsi alamselts, esikloomaliste (Primates) seltsi alamselts (Anthropoidea)