A dark brown pigment made from the secretions of the cuttlefish. / A dark, slightly reddish, brown colour. / (by extension, countable) A sepia-coloured drawing or photograph.

(colour) Of a dark reddish-brown colour.

plural of sepia

(zoology) Any cuttlefish in the family Sepiadariidae.

plural of sepiadariid

(biochemistry) An enzyme that catalyzes the NADPH-dependent reduction of various carbonyl substances, including derivatives of pteridines.

(organic chemistry) The pigment 2-amino-6-[(2S)-2-hydroxypropanoyl]-7,8-dihydro-1H-pteridin-4-one

(archaic) Of the sepia, i.e. the cuttlefish. / (dated, colour) Of a dark or inky colour, often in reference to skin pigmentation.

(US, sometimes capitalized, dated) A black American or African American.

Resembling or characteristic of sepia.