• synonyms

rate-of-climb indicator

[reyt-uh v-klahym]
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noun Aeronautics.
  1. a flight instrument that indicates the rate of climb or descent of an aircraft.
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Origin of rate-of-climb indicator

First recorded in 1945–50
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018