Unidirectional
/ˌjuːnɪdɪˈrɛkʃənəl/
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Definition
(adj) Pertaining to only one direction, e.g.: where all component parts are aligned in the same direction in space.
Sentence Examples
The device uses a unidirectional microphone to capture the sound.
A unidirectional flow means that something moves in only one way.
CEFR Practice Quiz
The ____ flow of traffic on the narrow street was introduced to reduce the risk of any serious accidents today.