1. An instep flattened so the entire sole rests on the ground
   - sunken arch

Derived forms: fallen arches

Type of: instep

• lockram
• lockring
• locksmith
• lockstep
• lockstitch
• lockup
• locky
• loco
• loco disease
• locoism
• locomote
• locomotion
• locomotive
• locomotive engine
• locomotive engineer
• locomotor
• locomotor ataxia
• locoweed
• locular
• locule
• loculus
• locum
• locum tenens
• locus
• locus classicus