(n) the property of a microphone or antenna of being more sensitive in one direction than in another, Syn. directionality, Example:the antenna received signals with no directivity
The Collaborative International Dictionary of English (GCIDE) v.0.53 Collaborative International Dictionary (GCIDE)
n. the property of a microphone or antenna of being more sensitive to signal arriving from one direction than from another. Syn. -- directivity. [ WordNet 1.5 ]