1. Very clearly delineated
   "razor-sharp definition" 
2. As sharp as a razor

See also: distinct, sharp

• pitch pine
• pitch pipe
• pitch shot
• pitch-black
• pitch-dark
• pitchblende
• pitched
• pitched battle
• pitcher
• pitcher plant
• pitcher sage
• pitcher's mound
• pitcher-plant family
• pitcher-shaped
• pitcherful
• pitchfork
• pitching
• pitching change
• pitching coach
• pitching wedge
• pitchman
• pitchstone
• pitchy
• piteous
• piteously