high-definition television(redirected from OTA HD)
Also found in: Dictionary, Thesaurus.
high-definition television[¦hī def·ə¦nish·ən ′tel·ə‚vizh·ən]
A television system with a resolution of more than 1000 scan lines, as compared to 525-625 scan lines in conventional systems. Abbreviated HDTV.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.