: a slender widely distributed nematode worm of the genus Dictyocaulus (D. filaria) that parasitizes the air passages of the lungs of sheep
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“Thread lungworm.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/thread%20lungworm. Accessed 6 Mar. 2025.
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