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lan·ci·nat·ing 'lan(t)-sə-.nāt-iŋ adj characterized by piercing or stabbing sensations <\lancinating pain>
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adj.
describing a sharp stabbing or cutting pain.
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lan·ci·nat·ing (lanґsĭ-nāt″ing) [L. lancinas] tearing, darting, or sharply cutting; see under pain.Medical dictionary. 2011.