tropical rat mite
noun
: a widely distributed mite (Ornithonyssus bacoti of the family Macronyssidae) that is primarily a parasite of rodents but sometimes bites humans causing painful itching and irritation and that has been implicated as a vector or potential vector of various diseases
Cite this Entry
“Tropical rat mite.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/tropical%20rat%20mite. Accessed 1 Dec. 2025.
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