As the seat of Miami-Dade County, the municipality is the principal, central, and most populous of its metropolitan area and part of the second-most populous metropolis in the southeastern United States.
porpoise (plural porpoises) A small cetacean of the family Phocoenidae, related to whales and dolphins. (Canada, US, imprecisely) Any small dolphin. Synonyms . garfish, mereswine, sea hog, sea pig, seaswine; Translations
Harbour porpoise. The harbour porpoise (Phocoena phocoena) is one of six species of porpoise. It is one of the smallest marine mammals. As its name implies, it stays close to coastal areas or river estuaries, and as such, is the most familiar porpoise to whale watchers.