What is "biliverdin"

Biliverdin \Bil`i*ver"din\, n. [L. bilis bile + viridis green. Cf. Verdure.] (Physiol.) A green pigment present in the bile, formed from bilirubin by oxidation.

n. (context biochemistry English) A green tetrapyrrolic bile pigment, a product of heme catabolism, responsible for the yellowish colour in bruises.

Biliverdin is a green tetrapyrrolic bile pigment, and is a product of heme catabolism. It is the pigment responsible for a greenish color sometimes seen in bruises.