compressibility correction[kəm‚pres·ə′bil·əd·ē kə′rek·shən]
The correction of the calibrated airspeed caused by compressibility error.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
A correction applied to rectified airspeed to get equivalent airspeed. This correction is always negative but is generally negligible below 200 to 240 knots.
An Illustrated Dictionary of Aviation Copyright © 2005 by The McGraw-Hill Companies, Inc. All rights reserved