directivity

from WordNet (r) 3.0 (2006)

directivity
    n 1: the property of a microphone or antenna of being more
         sensitive in one direction than in another; "the antenna
         received signals with no directivity" [syn: {directivity},
         {directionality}]
    2: the quality of being directive [syn: {directivity},
       {directiveness}]

from The Collaborative International Dictionary of English v.0.48

directivity \directivity\ n.
   the property of a microphone or antenna of being more
   sensitive to sounds coming from one direction than from
   another.

   Syn: directionality.
        [WordNet 1.5]

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