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black scour worm

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Definition of black scour worm

: a small nematode worm (genus Trichostrongylus) parasitizing the small intestine and fourth stomach of sheep

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“Black scour worm.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/black%20scour%20worm. Accessed 25 Feb. 2021.

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