| ALANINS | • alanins n. Plural of alanin. • ALANIN n. an amino acid, also ALANINE. |
| ANTHOCYANINS | • anthocyanins n. Plural of anthocyanin. • ANTHOCYANIN n. a glucoside plant pigment, violet in neutral, red in acid, blue in alkaline cell-sap, also ANTHOCYAN. |
| BETACYANINS | • betacyanins n. Plural of betacyanin. • BETACYANIN n. any one of a group of red nitrogenous pigments found in certain plants, such as beetroot. |
| CYANINS | • cyanins n. Plural of cyanin. • CYANIN n. a blue dye, also CYANINE. |
| EUMELANINS | • eumelanins n. Plural of eumelanin. • EUMELANIN n. any melanin pigment of darker type. |
| GUANINS | • guanins n. Plural of guanin. • GUANIN n. a yellowish-white, amorphous substance, forming a constituent of nucleic acids, also GUANINE. |
| HAEMOCYANINS | • haemocyanins n. Plural of haemocyanin. • HAEMOCYANIN n. an oxygen-carrying pigment in arachnids, equivalent to haemoglobin in mammals. |
| HEMOCYANINS | • hemocyanins n. Plural of hemocyanin. • HEMOCYANIN n. a colourless copper-containing respiratory pigment in the circulatory fluid of various arthropods and mollusks, also HAEMOCYANIN. |
| MANGANINS | • manganins n. Plural of manganin. • MANGANIN n. an alloy of copper, manganese, and nickel. |
| MELANINS | • melanins n. Plural of melanin. • MELANIN n. any of various dark brown or black pigments present in the hair, skin, eyes, etc. |
| PHAEOMELANINS | • phaeomelanins n. Plural of phaeomelanin. • PHAEOMELANIN n. a reddish-brown pigment in animals, including birds. |
| PHENYLALANINS | • PHENYLALANIN n. an essential amino acid present in most proteins, also PHENYLALANINE. |
| PHTHALOCYANINS | • phthalocyanins n. Plural of phthalocyanin. • PHTHALOCYANIN n. any of a group of green and blue organic colouring matters of great fastness and brilliance, also PHTHALOCYANINE. |
| PHYCOCYANINS | • phycocyanins n. Plural of phycocyanin. • PHYCOCYANIN n. any of various bluish-green protein pigments in the cells of cyanobacteria. |
| PLASTOCYANINS | • plastocyanins n. Plural of plastocyanin. • PLASTOCYANIN n. a copper-containing protein that acts as an intermediary in photosynthetic electron transport. |
| SAFRANINS | • safranins n. Plural of safranin. • SAFRANIN n. the yellow colouring matter in saffron; a coal tar derivative which dyes yellowish red, also SAFRANINE. |
| SOLANINS | • solanins n. Plural of solanin. • SOLANIN n. a poisonous alkaloid glucoside extracted from the berries of common nightshade, also SOLANINE. |
| URANINS | • URANIN n. an alkaline salt of fluorescein, obtained as a brownish red substance, used as a dye. |