Phthiriasis Definition
thĭ-rīə-sĭs, thī-
noun
Infestation with lice, esp. the crab louse; pediculosis.
Webster's New World
Wiktionary
Other Word Forms of Phthiriasis
Noun
Singular:
phthiriasis
Plural:
phthiriasesOrigin of Phthiriasis
Latin phthīriāsis from Greek phtheiriāsis from phtheiriān to be lousy from phtheir louse
From American Heritage Dictionary of the English Language, 5th Edition
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