✨📕 The NEWThe NEW Collegiate Dictionary, 12th Edition Over 5,000 words added — Buy Now! Collegiate DictionaryBuy Now!

Dictyocaulus

noun

Dic·​ty·​o·​cau·​lus ˌdik-tē-ə-ˈkȯ-ləs How to pronounce Dictyocaulus (audio)
: a genus of small slender lungworms (family Dictyocaulidae) infesting mammals (as ruminants) and often causing severe bronchial symptoms or even pneumonia in young animals

Browse Nearby Words

Cite this Entry

“Dictyocaulus.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/Dictyocaulus. Accessed 7 Dec. 2025.

Love words? Need even more definitions?

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