adj.

very clearly delineated

"razor-sharp definition"

as sharp as a razor

RAZOR SHARP
Razor sharp
Razor Sharp
Alcohol and Cardiovascular Health : The Razor-Sharp Double-Edged Sword
Keeping the razor sharp: hafting and maintenance of sickles in the southern Levant during the 6th and 5th millennia bc
Battling fatigue : how to keep drivers razor-sharp on the road
Watch a craftsman create a razor sharp knife from an old wrench
Landscapes of anatexis: A ritual using a razor sharp blade for resurrecting the phoenix
Samsung’s New Galaxy Tablets Are Razor-Thin and Razor-Sharp
CASE: Gillette's Shave India Movement: Razor Sharp Against the Stubble
Looking Razor Sharp
Razor Sharp Haze Daze
Save the razor-sharp wit—they like their mustaches