Polystomatidae

plural noun

Po·​lys·​to·​mat·​i·​dae

ˌpälēstōˈm-,

-lə̇s-

: a family comprising monogenetic trematode worms with a group of strong suckers and usually a pair of chitinous hooks at the posterior end

Word History

Etymology

New Latin, from Polystomat-, Polystoma + -idae

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!