Webster's Revised Unabridged Dictionary · 1913

Simpai

Simpai , noun

[Malay simpei.]

(Zoology) A long-tailed monkey (Semnopitchecus melalophus) native of Sumatra. It has a crest of black hair. The forehead and cheeks are fawn color, the upper parts tawny and red, the under parts white. Called also black-crested monkey, and sinpae.