What is (a) Any plectognath fish which inflates its body, as the species of Tetrodon and Diodon; -- called also blower, puff-fish, swellfish, and globefish. (b) The common, or harbor, porpoise called?

puffer — (Zoöl.) (a) Any plectognath fish which inflates its body, as the species of Tetrodon and Diodon; -- called also blower, puff-fish, swellfish, and globefish. (b) The common, or harbor, porpoise. (Webster's 1913.)