noun
    
    /ænˈtɛnə/ , pl -nae /-ni/ or -nas
    
    [count] a thin sensitive organ on the head of an insect, crab, etc., that is used mainly to feel and touch things - sometimes used figuratively
    
    
    
    The plural of antenna in this sense is usually antennae.
    
    chiefly US :a device (such as a wire or a metal rod) for sending or receiving radio or television signals
    
    
    
    The plural of antenna in this sense is usually antennas.