ˈthirēəs noun
Usage: capitalized
Etymology: New Latin, from Greek phtheir louse
: a genus (the type of the family Phthiriidae) containing the crab louse
ˈthirēəs noun
Usage: capitalized
Etymology: New Latin, from Greek phtheir louse
: a genus (the type of the family Phthiriidae) containing the crab louse
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012