KNIFE-EDGE


Meaning of KNIFE-EDGE in English

noun Date: 1818 a sharp wedge of steel or other hard material used as a fulcrum for a lever beam in a precision instrument, a sharp narrow knifelike edge

Merriam Webster. Explanatory English dictionary Merriam Webster.      Толковый словарь английского языка Мерриам-Уэбстер.