from The American Heritage® Dictionary of the English Language, 4th Edition
- n. Infestation with lice, especially crab lice; pediculosis.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. An infestation with crab lice
- n. A pediculosis
from the GNU version of the Collaborative International Dictionary of English
- n. A disease (morbus pediculous) consisting in the excessive multiplication of lice on the human body.
from The Century Dictionary and Cyclopedia
- n. The presence of lice on the body, with the irritation produced thereby and its effects; the lousy disease, formerly called morbus pediculosus.
Latin phthīriāsis, from Greek phtheiriāsis, from phtheiriān, to be lousy, from phtheir, louse.(American Heritage® Dictionary of the English Language, Fourth Edition)