1. Having one barrel
   "most guns are single-barreled"
   - single-barrelled [US]

Antonym: double-barreled [US]

• paralipsis
• Paralithodes
• Paralithodes camtschatica
• parallax
• parallel
• parallel axiom
• parallel bars
• parallel circuit
• parallel interface
• Parallel Lives
• parallel of latitude
• parallel operation
• parallel port
• parallel processing
• parallel-park
• parallel-veined leaf
• parallelepiped
• parallelepipedon
• parallelise
• parallelism
• parallelize
• parallelogram
• parallelopiped
• parallelopipedon
• paralogism