balantidium

noun

1
capitalized : a genus of large parasitic ciliate protozoans (family Balantidiidae) including one (B. coli) that infests the intestines of some mammals and especially swine and may cause a chronic ulcerative dysentery in humans
2
plural balantidia -ē-ə How to pronounce balantidium (audio) : a protozoan of the genus Balantidium

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

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