Sphyrna

noun

Sphyr·​na

ˈsfərnə

: a genus (the type of the family Sphyrnidae) of large voracious chiefly tropical sharks including the hammerhead shark

Word History

Etymology

New Latin, modification of Greek sphyra hammer

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!