Synonym for orang-outang ... <zoology> An arboreal anthropoid ape (Simia satyrus), which inhabits Borneo and Sumatra. Often called simply orang. ... Alternative forms: orang-outan, orang-utan, ourang-utang, and oran-utan. ... It is over four feet high, when full grown, and has very long arms, which reach nearly or quite to the ground when the... Found on http://www.encyclo.co.uk/local/20973