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plan position indicator

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noun
a radarscope on which an object reflecting radar waves shows its bearing and distance from the radar detector by causing a spot of light to appear on a screen that represents a map of the area around the detector. Abbreviation: PPI
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“Was” is used for the indicative past tense of “to be,” and “were” is only used for the subjunctive past tense.

Origin of plan position indicator

First recorded in 1940–45

Words nearby plan position indicator

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2022

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