sim·i·an 
(sĭmē-ən)
(sĭmē-ən)adj.
1. Relating to, characteristic of, or resembling a monkey or an ape: humans and other simian primates.
2. Relating to, characteristic of, or resembling a monkey or a nonhuman ape: caricatures of politicians with simian features.
n.
1. A monkey or an ape.
2. A monkey or a nonhuman ape.
[From Latin sīmia, ape, ultimately (probably via the Greek personal name Sīmiās, originally a nickname for a snub-nosed man, perhaps also given to pet apes in reference to their appearance) from Greek sīmos, snub-nosed and of unknown origin.]