IPA: /pəˈdɪkjələs/
KK: /pɛˈdɪkjələs/
Having lice or being infested with lice.
The pediculous condition of the child's hair required immediate treatment.
Pediculous is derived from the Latin root "pediculus" (meaning louse) and the suffix "-ous" (meaning full of). The word describes something that is full of lice or infested with lice.
Think of 'pediculus' which means louse, and remember that 'pediculous' refers to being full of lice.