porpoised

As verbs the difference between porpoises and porpoised

is that porpoises is (porpoise) while porpoised is (porpoise).

As a noun porpoises

is .

As verbs the difference between porpoised and porpoise

is that porpoised is (porpoise) while porpoise is said of an aircraft: to make a series of plunges when taking off or landing.

As a noun porpoise is

a small cetacean of the family phocoenidae, related to whales and dolphins.