Meaning & Definition of word "Louse"

to

arrow

    Louse

    /laʊs/

    noun:

    • 1. A small, wingless, parasitic insect that feeds on the blood of mammals and birds.
      • Example: The child was treated for head lice, as the school had reported an outbreak.
    • 2. A contemptible or unpleasant person.
      • Example: He’s such a louse for cheating his friends out of their money.

    Etymology

    Old English 'lūs'; related to similar words in other Germanic languages.

    Common Phrases and Expressions

    louse up:

    To ruin or mess something up.

    no louse left behind:

    A humorous expression implying that everyone, even the least important or dirty, will be accounted for.

    Related Words

    lice:

    Plural of louse, refers to the parasitic insects that infest humans.

    nits:

    The eggs or young forms of lice.

    ectoparasite:

    An organism that lives on the exterior of another organism, feeding off it.

    Slang Meanings of louse

    Meaning: A despicable person or behavior.

    Example Sentence: He cheated his friends; what a louse!

    Meaning: Someone insignificant or of no consequence.

    Example Sentence: Don't listen to that louse, he doesn’t know what he’s talking about.