Definition of razor-edge:
(n) :
A keen-edged knife of peculiar shape, used in shaving the hair from the face or other parts of the body.
(n) :
Any tool or instrument designed for shaving.
(v) :
(transitive) To shave with a razor.
(n) :
(philosophy) A conceptual device that allows one to shave away unlikely explanations for a phenomenon.
(n) :
The sharp tusk of a wild boar.
(n) :
A surname.