any of a genus (Presbytis) of lanky, long-tailed monkeys of Southeast Asia, with bushy eyebrows and a chin tuft
Origin:
Hindi laṅgūr < Sans lāṅgūlin, lit., having a tail
See langur in American Heritage Dictionary 4
noun
Any of various slender, long-tailed Asian monkeys of the genus Presbytis and related genera that eat leaves, fruits, and seeds and have a chin tuft and bushy eyebrows.