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
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“Dictyocaulus.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/Dictyocaulus. Accessed 16 Nov. 2025.
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