cutlass fish

noun

variants or cutlassfish

plural cutlass fishes or cutlassfish or cutlassfishes

: any of a family (Trichiuridae) of eellike fish of warm seas

especially : a silvery fish (Trichiurus lepturus) with an elongate body tapering to a hairlike filament and lacking caudal and pelvic fins

Love words?

You must — there are over 200,000 words in our free online dictionary, but you are looking for one that’s only in the Merriam-Webster Unabridged Dictionary.

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!