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English definition of “antenna”

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antenna

noun [C]  /ænˈten·ə/ us  

antenna noun [C] (INSECT)

( plural antennae  /ænˈten·i/) either of the two long, thin parts attached to the head of an insect that it uses to know what is around it: fig. Her political antennae helped her answer questions without offending anyone.

antenna noun [C] (BROADCASTING)

( plural antennas) a structure made of metal rods or wires, often positioned on top of a building or vehicle, that receives or sends radio or television signals
(Definition of antenna from the Cambridge Academic Content Dictionary © Cambridge University Press)
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