That uses a sting; furnished with a sting or stinging organs of any sort; urticating: as, a stinging insect or sea-nettle.In botany, noting a plant furnished with stinging hairs. See sting, 2.That pierces or wounds as with a sting; that causes acute pain, irritation, or the like; keen; sharp; pungent; telling: as, a stinging tongue; a stinging rebuke or remark.