Definition of leatherjacket
1a : a filefish (family Monacanthidae) b less commonly leather jack : any of several fishes (genus Oligoplites) of the family Carangidae having the scales reduced and embedded in the skin; especially : a common fish (O. saurus) of both coasts of tropical America
2 : any of several Australian trees with very tough close smooth bark; especially : coachwood 1a
3 Australia : a johnnycake pan-fried or baked in hot ashes
Start your free trial today and get unlimited access to America's largest dictionary, with:
- More than 250,000 words that aren't in our free dictionary
- Expanded definitions, etymologies, and usage notes
- Advanced search features
- Ad free!
Seen and Heard
What made you want to look up leatherjacket? Please tell us where you read or heard it (including the quote, if possible).