Definition of smooth hound
: any of several dogfishes (genus Mustelus) closely related to or included with the requiem sharks
Origin and Etymology of smooth hound
from the absence of a spine in front of the dorsal fin
First Known Use: 1603
Learn More about smooth hound
Seen and Heard
What made you want to look up smooth hound? Please tell us where you read or heard it (including the quote, if possible).