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WordReference Random House Unabridged Dictionary of American English © 2024bird′ louse′. - InsectsSee under louse (def. 2).
WordReference Random House Learner's Dictionary of American English © 2024louse /n. laʊs; v. also laʊz/USA pronunciation n., pl. lice /laɪs/USA pronunciation for 1–3. lous•es for 4. in Unabridged dictionary, v.,. loused, lous•ing. n. [countable] - Insectsa small, flat, wingless insect with sucking mouthparts, that lives on humans and animals.
- Slang Termsa mean, contemptible person.
v. - louse up, [Slang.]to fail to do successfully* botch: [~ + up + object]He loused up his opportunity.[~ + object + up]It's your big chance; don't louse it up.[no object]He's going to louse up again.
WordReference Random House Unabridged Dictionary of American English © 2024louse (n. lous;v. lous, louz),USA pronunciation n., pl. lice (līs)USA pronunciation for 1–3, lous•es for 4, v., loused, lous•ing. n. - Insectsany small, wingless insect of the order Anoplura (sucking louse,) parasitic on humans and other mammals and having mouthparts adapted for sucking, as Pediculus humanus (body louse or head louse) and Phthirius pubis (crab louse or pubic louse).
- Insectsany insect of the order Mallophaga (bird louse, biting louse, or chewing louse,) parasitic on birds and mammals, having mouthparts adapted for biting.
- InsectsSee plant louse.
- Slang Termsa contemptible person, esp. an unethical one.
v.t. - to delouse.
- louse up, [Slang.]to spoil;
botch:Miscasting loused up the movie.
- bef. 900; 1910–15 for def. 4; Middle English lous(e), luse, plural lise, lice; Old English lūs, plural lȳs; cognate with Dutch luis, German Laus, Old Norse lūs
Collins Concise English Dictionary © HarperCollins Publishers:: louse /laʊs/ n ( pl lice /laɪs/)- any wingless bloodsucking insect of the order Anoplura: includes Pediculus capitis (head louse), Pediculus corporis (body louse), and the crab louse, all of which infest man
Related adjective(s): pedicular - biting louse, bird louse ⇒ any wingless insect of the order Mallophaga, such as the chicken louse: external parasites of birds and mammals with biting mouthparts
- any of various similar but unrelated insects, such as the plant louse and book louse
- ( pl louses
) slang an unpleasant or mean person vb (transitive)- to remove lice from
- (followed by up) slang to ruin or spoil
Etymology: Old English lūs; related to Old High German, Old Norse lūs |