Dictyocaulus

noun

Dic·ty·o·cau·lus ˌdik-tē-ə-ˈkȯ-ləs

: 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

dicrotic notch

Dictyocaulus

dictyokinesis

See all Nearby Words

Cite this Entry

Style

“Dictyocaulus.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/Dictyocaulus. Accessed 8 Jul. 2026.

Copy Citation

More from Merriam-Webster

Play Quordle: Guess all four words in a limited number of tries. Each of your guesses must be a real 5-letter word.

Can you solve 4 words at once?

Can you solve 4 words at once?

Word of the Day

gambol

See Definitions and Examples »

Get Word of the Day daily email!

Popular in Grammar & Usage

Is that lie 'bald-faced' or 'bold-faced'?

'A' or 'an'? What about before 'h'? An Indefinite Article Guide

Why is '-ed' sometimes pronounced at the end of a word?

Commonly Misspelled Words

How to Use Em Dashes (—), En Dashes (–) , and Hyphens (-)

Popular in Wordplay

14 Phobias You Probably Haven't Heard Of

The Longest Long Words List

One-Word Oxymorons: Bittersweet, Spendthrift, and More

Ten Words Ending with a Silent ‘T’

12 Lovely and Unusual Words for the Natural World

Popular

Is that lie 'bald-faced' or 'bold-faced'?

14 Phobias You Probably Haven't Heard Of

The Longest Long Words List