Meaning of DIRECTIONAL in English

DIRECTIONAL

adj. 1 of or indicating direction. 2 Electronics a concerned with the transmission of radio or sound waves in a particular direction. b (of equipment) designed to receive radio or sound waves most effectively from a particular direction or directions and not others. directionality n. directionally adv.

Concise Oxford English dictionary.      Краткий оксфордский словарь английского языка.