antenna - definition and synonyms

noun [countable] 

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/ænˈtenə/
singularantenna
pluralantennae
  1. 1
    singular
    pluralantennae
    biology one of the two long thin parts on an insect’s head that it uses to feel things with
  2. 2
    singular
    pluralantennas or antennae
    mainly American an aerial