Definition of phalanger
- a lemur-like tree-dwelling marsupial native to Australia and New Guinea.
- Family Phalangeridae: several genera, in particular Phalanger and Spilocuscus, and including the cuscuses; the common phalanger is either the spotted cuscus or the grey cuscus. See also flying phalanger
late 18th century: from French, from Greek phalangion 'spider's web' (because of the webbed toes of their hind feet)