Definition of pediculous
: infested with lice : lousy
Did You Know?
Count on the English language's Latin lexical options to pretty up the unpleasant. You can have an entire conversation about lice and avoid the l-word entirely using "pediculous" and its relatives. None of the words (from pediculus, meaning "louse") is remotely common - most of them are so uncommon that they appear only in our Unabridged dictionary - but they're all available to you should you feel the need for them. There's pediculosis, meaning "infestation with lice;" pedicular, meaning "of or relating to lice;" and pediculoid, meaning "resembling or related to the common lice." "Pediculid" names a particular kind of louse - one of the family Pediculidae. And if you'd like to put an end to all of this you might require a "pediculicide" - defined as "an agent for destroying lice."
Origin and Etymology of pediculous
Latin pediculosus, from pediculus
First Known Use: circa 1540
Learn More about pediculous
Seen and Heard
What made you want to look up pediculous? Please tell us where you read or heard it (including the quote, if possible).