Entry 1 sense Webster, 1913 Lancinating · Lan·ci·na·ting · IPA /ˈlɑːnsɪneɪtɪŋ/ 01 a. Piercing; seeming to pierce or stab; as, lancinating pains (i.e., severe, darting pains). 1. Piercing; seeming to pierce or stab; as, lancinating pains (i.e., severe, darting pains).