As nouns the difference between carnid and carnin
is that carnid is any member of the Carnidae while carnin is a white crystalline nitrogenous substance, found in extract of meat, and related to xanthin.
carnid
English
Noun
(
en noun)
(zoology) Any member of the Carnidae. carnin
English
Noun
(
-)
(organic compound) A white crystalline nitrogenous substance, found in extract of meat, and related to xanthin.
(
Webster 1913)