What does "lionfish" mean?

Any of various ray-finned fishes of the tribe Pteroini (especially of the genus Pterois) in the family Scorpaenidae.

How do you pronounce "lionfish"?

Pronounced //ˈlaɪənˌfɪʃ//.

Common synonyms include: alien lionfish, introduced lionfish, invasive lionfish, lion fish, red lionfish, striped lionfish.

/ˈlaɪənˌfɪʃ/ noun

noun ·Rare ·Advanced level

Noun

1
Any of various ray-finned fishes of the tribe Pteroini (especially of the genus Pterois) in the family Scorpaenidae.
2
brightly striped fish of the tropical Pacific having elongated spiny fins wordnet

"One of the most pervasive species is the lionfish, a voracious predator from Asia that is depleting native coral reef fish in the Caribbean."

Compound of lion + fish.