papain(n = noun.substance) - a proteolytic enzyme obtained from the unripe papaya; used as a meat tenderizer;
is a kind of enzyme
A proteolytic ferment, like trypsin, present in the juice of the green fruit of the papaw (
papain, n. an enzyme obtained from unripe pawpaws, used to tenderize meat and as a food supplement to aid digestion.
Etymology:
PAPAYA + -IN