Armstrong Edwin Howard

Arm·strong

 (ärm′strông′), Edwin Howard 1890-1954.
American engineer and inventor whose improvements to radio communication included the development of frequency modulation (1933).
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.