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myiasis

American

[mahy-uh-sis] / ˈmaɪ ə sɪs /

Or myasis

noun

Pathology, Veterinary Pathology.

plural

myiases

any disease that results from the infestation of tissues or cavities of the body by larvae of flies.

myiasis British

/ ˈmaɪəsɪs /

noun

infestation of the body by the larvae of flies
any disease resulting from such infestation

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of myiasis

1830–40; < Greek myî ( a ) fly + -asis

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

HHS spokesperson Andrew Nixon said it is the first human case of travel-associated NWS myiasis from an outbreak-affected country identified in the US.

From BBC • Aug. 25, 2025

NWS myiasis is a parasitic infestation of fly larvae, or maggots, caused by parasitic flies.

From BBC • Aug. 25, 2025

It’s not all that uncommon for maggots to infest and grow in poorly healing human tissue—it’s called myiasis.

From Slate • Feb. 25, 2024

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023