Hirudiniformes

noun plural

Hir·​u·​din·​i·​for·​mes ˌhir-(y)ə-ˌdin-ə-ˈfȯr-ˌmēz How to pronounce Hirudiniformes (audio)
: a suborder of leeches comprising those lacking a proboscis and having 2-toothed or 3-toothed chitinous jaws (as the medicinal leech and the land leeches)

Browse Nearby Words

Cite this Entry

“Hirudiniformes.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/Hirudiniformes. Accessed 5 Nov. 2025.

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!