What is to waver unsteadily, like a flame in a current of air, or when about to expire; as, the flickering light. The shadows flicker to fro. Tennyson called?

flicker — To waver unsteadily, like a flame in a current of air, or when about to expire; as, the flickering light. The shadows flicker to fro. Tennyson. (Webster's 1913.)

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