noun
EXAMPLES FROM CORPUS
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As the Ford charged after the Mercedes, Dunn saw in his wing mirror a spurt of tracer fire.
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As the Goshawk flight got closer they could see the flickering criss-cross of tracer .
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Begin monitoring the channels on which tracer signals were found. 8.
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But the tracer was weaving from side to side.
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Delaney jerked the pin from a grenade, tossed it blindly in the direction of the tracer .
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If you saw the line of tracers from the side, then they were going somewhere else.
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Scan the microwave channels to find tracer signals. 6.
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Suddenly tracers came back from the top.