porpoise definition by Wordo

Noun

A

small

cetacean

of

the

family

,

related

to

dolphins

and

whales

.

Verb

Said

of

an

air-breathing

aquatic

animal

such

as

a

porpoise

or

penguin

:

To

repeatedly

jump

out

of

the

water

to

take

a

breath

and

dive

back

in

a

continuous

motion

.