Dictionary Definition :
Definition[1]
:
The wind that cuts all living beings to pieces—at the approach of a world-kalpa's end; also described as the disintegrating force at death.
Source
:
A Dictionary of Chinese Buddhist Terms, William Edward Soothill and Lewis Hodous
Definition[2]
:
(術語)人命欲終時,有風氣,解支節如刀,名為刀風,所謂斷末魔之苦也。正法念經六十六曰:「見命終時刀風皆動,皮肉筋骨脂髓精血一切解截。」五王經曰:「欲死時刀風解形,無處不痛。」安樂集上曰:「若刀風一至,百苦輳身。」行事鈔資持記上一之下曰:「能解支節故喻如刀。」
Source
:
丁福保《佛學大辭典》