1. Wingless insect with mouth parts adapted for biting; mostly parasitic on birds
   - biting louse, louse

Derived forms: bird lice

Type of: insect

Part of: Mallophaga, order Mallophaga

Encyclopedia: Bird louse

• by hook or by crook
• by inches
• by Jove
• by luck
• by machine
• by memory
• by nature
• by no means
• by right of office
• by rights
• by small degrees
• by the book
• by the bye
• by the day
• by the piece
• by the skin of your teeth
• by the way
• by trial and error
• by word of mouth
• by-and-by
• by-bid
• by-blow
• by-election
• by-line
• Byblos