1. The external margin of the aperture of a shell 
2. An organ in insects and crustaceans covering the upper part of the mouth, and serving as an upper lip 
3. A lip or edge, as of a basin

Derived forms: labra

Encyclopedia: Labrum

• palm off
• palm oil
• palm reading
• palm sugar
• Palm Sunday
• palm tree
• palm-shaped
• palma christ
• palma christi
• Palmaceae
• Palmae
• Palmales
• palmar
• palmary
• palmate
• palmate leaf
• palmated
• palmately
• palmately-lobed
• palmatifid
• palmature
• Palmer
• Palmer Peninsula
• palmette
• palmetto