Definition
Adjusted to account for known errors, deviations, or non-standard conditions, so that the resulting value reflects the true or standard reference. In aviation, raw indicated readings (such as altitude, airspeed, or compass heading) are often modified by applying corrections for instrument error, installation error, temperature, pressure, or magnetic variation to produce a corrected value usable for navigation or performance calculations.
Plain English
Adjusted to fix known errors so the number you end up with is the real, accurate one.
Context Anchor
Seen with instrument readings, performance calculations, navigation figures, and maintenance data.
Derivation
From Latin 'corrigere', meaning 'to make straight' or 'to set right' (com- 'together' + regere 'to guide'). In aviation, a 'corrected' value has been set right by removing known errors from the raw reading.
Why Pilots Care
Raw instrument readings are rarely the truth. Pilots must apply corrections to get values that are safe to fly by — uncorrected altitude or airspeed can put an aircraft outside its performance envelope or off its assigned altitude.
Intuition Check
Corrected does not simply mean “fixed” in a general sense. In aviation, it means a specific adjustment has been applied to a reading or number.
Example Sentence 1
After applying the temperature correction, the pilot used the corrected altitude for terrain clearance in cold weather.
Example Sentence 2
Performance charts require the corrected airspeed rather than the raw indicated value.