lesser stomach worm

noun

Medical Definition of lesser stomach worm

: a small threadlike nematode worm of the genus Ostertagia (O. ostertagi) often present in immense numbers in the pyloric part of a sheep's stomach

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Cite this Entry

“Lesser stomach worm.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/lesser%20stomach%20worm. Accessed 4 Dec. 2021.

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