fuscin

From Latin fuscus (“dark-colored, tawny”) + -in.

• IPA^(key): /ˈfʌsɪn/

fuscin (uncountable)

1. A brown nitrogenous pigment contained in the retinal epithelium; a variety of melanin.

• “fuscin”, in Webster’s Revised Unabridged Dictionary, Springfield, Mass.: G. & C. Merriam, 1913, →OCLC.
• William Dwight Whitney, Benjamin E[li] Smith, editors (1911), “fuscin”, in The Century Dictionary […], New York, N.Y.: The Century Co., →OCLC.
• James A. H. Murray et al., editors (1884–1928), “Fuscin”, in A New English Dictionary on Historical Principles (Oxford English Dictionary), London: Clarendon Press, →OCLC. ("Fuscin. [...] Also -ine.")