flutter echo[′fləd·ər ‚ek·ō]
A multiple echo in which the reflections rapidly follow each other.
A radar echo consisting of a rapid succession of reflected pulses resulting from a single transmitted pulse.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
A rapid succession of echoes
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.