pro·lif·ic / prəˈlifik/ • adj. 1. (of a plant, animal, or person) producing much fruit or foliage or many offspring: in captivity, tigers are prolific breeders. ∎ (of an artist, author, or composer) producing many works: he was a prolific composer of operas. ∎ (of a sports player) high-scoring: a prolific home-run hitter.2. present in large numbers or quantities; plentiful: mahogany was once prolific in the tropical forests. ∎ (of a river, area, or season of the year) characterized by plentiful wildlife or produce: the prolific rivers and lakes of Franklin County.DERIVATIVES: pro·lif·i·ca·cy / -ikəsē/ n.pro·lif·i·cal·ly / -ik(ə)lē/ adv.pro·lif·ic·ness n.