por·poise
 porpoise
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- pronunciation:
- por
p
s
- features:
- Word History, Word Explorer
| part of speech: |
noun |
| inflections: |
porpoise, porpoises |
| definition: |
A porpoise is a mammal that lives in the ocean. Porpoises look similar to fish, but they breathe air. Porpoises are close relatives of dolphins. In North America, people often use the word "dolphin" for "porpoise."
Some kinds of porpoises have a fin on their back that has the shape of triangle. |
Porpoise comes from a French word that means "pig fish."