Definition of antenna in US English:

antenna

nounPlural antennae

  • 1Zoology
    Either of a pair of long, thin sensory appendages on the heads of insects, crustaceans, and some other arthropods.

    • ‘Without claws, spiny lobsters use their antennae to fend off predators.’
    • ‘Lurking in these holes, the ants grab the legs and antennae of unsuspecting insects.’
    • ‘It was a female, as evidenced by its plump, rounded abdomen and thin antennae.’
    • ‘In these fossils, detail of legs, antennae, wings, and even small body hairs are preserved.’
    • ‘The only appendages that all crustaceans have in common is two pairs of antennae.’
    tentacle, horn
    View synonyms
    1. 1.1antennae The faculty of instinctively detecting and interpreting subtle signs.
      ‘he has the political antennae of a party whip’
      • ‘Abu Mustafa, whose antennae were particularly sensitive, said he didn't think it was a wonderful idea.’
      • ‘They can suss out a person and have a natural antennae.’
      • ‘None of that will have escaped the acute political antennae of the member for Airdrie and Shotts, John Reid, the home secretary.’
      • ‘Rusk insists they'd never have such acute antennae for the cutting edge without his wife Louise's talent for creating new looks.’
      • ‘The ignorant president who reputedly cares nothing for the sensitivities of other cultures is shown to have diplomatic antennae.’
      • ‘But it is where the government has rushed, unprepared, political antennae wobbling, that it has fallen into error.’
      • ‘Aware of all this, Campbell's antennae were not tuned in.’
      • ‘Though social barriers may have been lowered, our social antennae have not.’
      • ‘In each case he has used his considerable speaking abilities and his acute political antennae to confront the allegations head on.’
      • ‘And while he has the political antennae to know what was being said about him, he has long given the impression that he doesn't give a damn.’
      • ‘The subliminal message would have registered on the sensitive antennae of bible belt America, while agnostics would have noticed nothing.’
      • ‘His antennae are sharply attuned to such shifts.’
      • ‘You'd think he'd have known better, maybe would have had antennae for this.’
      • ‘Peter Stringer has occasionally been charged with a lack of extravagance behind the scrum, but his antennae are never down.’
      • ‘And all the folks who have antennae for political magic are all a-twitter over him.’
      • ‘He possessed both an indomitable will and supersensitive antennae attuned to the political airways.’
      • ‘I'd trust politicians, who, whatever their faults, have finely tuned antennae for the flow of events.’
      • ‘But Melissa writes for the Guardian, and Guardian writers have different sensual antennae to the rest of us.’
  • 2A rod, wire, or other device used to transmit or receive radio or television signals.

    • ‘Dish antennas now receive more than fifty television channels via satellite signals.’
    • ‘Their mission changed from checking radios to checking the mounts and antennas.’
    • ‘We need agile radios whose antennas can point to other agile radios and not spread radio waves in every direction.’
    • ‘Those antennas are used as part of the U.S. Coast Guard communication system and have been for years.’
    • ‘Scaled down versions might serve as antennas for communications systems.’
    • ‘With the hilly terrain between the two antennas, the signal would encounter severe attenuation.’
    • ‘And on the roof there was a red and blue light bar with a whole slew of antennas sticking out from the top.’
    • ‘The plan was to build local telecommunications networks using antennas on customer buildings.’
    • ‘Radio tags on the market use bulky external antennas and cost about 30 cents and up.’
    • ‘There were no cable lines connected to the house, no antennas mounted on the roof, and no satellite in the yard.’
    • ‘Of course, all radios and antennas should be tuned for their best performance.’
    • ‘Moments later, automatic commands deployed its solar arrays and navigational antennas.’
    • ‘The interference involves a number of television antennas often used on boats.’
    • ‘We suppose they are radio antennas beaming away their signal into the low grey sky.’
    • ‘Avoid contact with power lines connected to the house and with television antennas.’
    • ‘Installation of the antennas and their associated cabling took about two hours.’
    • ‘Wireless calls can be received by a number of different antennas miles away from the caller.’
    • ‘It's a touch ugly, to be honest, with three external antennas on top of a small grey box.’
    • ‘To this day, Russian spacecraft tend to use separate antennas for each communications function.’
    • ‘A closer look reveals unusual devices on its roof - satellite antennas to receive signals from space.’

Origin

Mid 17th century: from Latin, alteration of antemna ‘yard’ (of a ship), used in the plural to translate Greek keraioi ‘horns (of insects)’, used by Aristotle.

Pronunciation

antenna

/ænˈtɛnə//anˈtenə/