antenna

Etymology
From. First used in this sense as a Latin word in the 15th century and as an English word by the end of the 17th century.

Noun

 * 1)   An appendage used for sensing on the head of an insect, crab, or other animal. 1
 * 2)  An apparatus to receive or transmit electromagnetic waves and convert respectively to or from an electrical signal.
 * 3)  The faculty of intuitive astuteness.
 * 4)  A fragment of an oligosaccharide
 * 5)  The spar to which a lateen sail is attached, which is then hoisted up the mast.
 * 1)  An apparatus to receive or transmit electromagnetic waves and convert respectively to or from an electrical signal.
 * 2)  The faculty of intuitive astuteness.
 * 3)  A fragment of an oligosaccharide
 * 4)  The spar to which a lateen sail is attached, which is then hoisted up the mast.
 * 1)  A fragment of an oligosaccharide
 * 2)  The spar to which a lateen sail is attached, which is then hoisted up the mast.
 * 1)  A fragment of an oligosaccharide
 * 2)  The spar to which a lateen sail is attached, which is then hoisted up the mast.

Usage notes

 * 1) For multiple feelers the Anglicised plural, antennas, is used only rarely in scholarly works in the life sciences. In other subjects and in less formal settings, antennas is found with increased frequency.
 * 2) For multiple aerials both plural forms are acceptable in scholarly works. The Latinate plural, antennae, is rarer in less formal settings.
 * 3) * 1913 Mihajlo Idvorski Pupin, "A discussion on experimental tests of the radiation law for radio oscillators", Proceedings of the Institute of Radio Engineers, volume 1, issue 1, pages 3-10, January 1913.
 * When we come to the complicated forms of antennae which we use in practice to-day, it becomes excessively difficult to work out the theory mathematically.
 * 1) * 1914 Oliver Lodge, "The fifth Kelvin Lecture: the electrification of the atmosphere, natural and artificial", Journal of the Institution of Electrical Engineers, volume 52, issue 229, pages 333-352.
 * At that time it was giving the full 50,000 volts, as measured by the needle spark-gap between the antennae and earth.
 * 1) * 1936 Edwin Howard Armstrong, "A method of reducing disturbances in radio signaling by a system of frequency modulation", Proceedings of the Institute of Radio Engineers, volume 24, issue 5, pages 689-740, May 1936.
 * If the distance between stations is such that the signal strength varies appreciably with time then the directivity of the receiving antennas must be greater than two to one.
 * 1) * 2011 G. Brodie, B.M. Ahmed, M.V. Jacob, "Detection of decay in wood using microwave characterization" 2011 Asia-Pacific Microwave Conference Proceedings, 5-8 Dec. 2011, pages 1754-1757.
 * Based on results from the dielectric probe experiment, a prototype system was developed to measure microwave attenuation and phase delay between two antennae in order to detect fungal decay in wood at equilibrium moisture content.
 * 1) * 2012 V. Mishra, T. Singh, A. Alam, V. Kumar, A. Choudhary, V. Dinesh Kumar, "Design and simulation of broadband nanoantennae at optical frequencies", IET Micro & Nano Letters, volume 7, issue 1, pages 24-28, January 2012.
 * Contrary to RF antennae, the length of such nanoantennae is shorter than half the operating wavelength for fundamental mode and this happens due to excitation of surface plasmons in the case of latter.
 * 1) * 2012 Y. Li, A. Nosratinia, "Capacity limits of multiuser multiantenna cognitive networks", IEEE Transactions on Information Theory, preprint, page 1, March 2012.
 * For simplicity of exposition, primary and secondary users are assumed initially to have one antenna, however, as shown in the sequel, most of the results can be directly extended to a scenario where each user has multiple antennas.
 * 1) Some make a distinction between an  and an, with the former used to indicate a rigid structure for radio reception or transmission, and the latter consisting of a wire strung in the air. For those who do not make a distinction,  is more commonly used in the United States and  is more commonly used in the United Kingdom.
 * 2) For the faculty of intuitive astuteness, the Latinate plural is used most frequently but both forms are found.
 * For simplicity of exposition, primary and secondary users are assumed initially to have one antenna, however, as shown in the sequel, most of the results can be directly extended to a scenario where each user has multiple antennas.
 * 1) Some make a distinction between an  and an, with the former used to indicate a rigid structure for radio reception or transmission, and the latter consisting of a wire strung in the air. For those who do not make a distinction,  is more commonly used in the United States and  is more commonly used in the United Kingdom.
 * 2) For the faculty of intuitive astuteness, the Latinate plural is used most frequently but both forms are found.

Translations

 * Arabic: هَوَائِيّ, زُبَانِيّ
 * Armenian: ,
 * Belarusian: ву́сік, антэ́на
 * Bengali:
 * Bulgarian:
 * Burmese:
 * Catalan:
 * Chinese:
 * Mandarin:
 * Czech:
 * Dutch:
 * Esperanto:
 * Finnish:
 * French:
 * Georgian: შემხე, ცეცი
 * German: ,
 * Greek:
 * Ancient: κεραία
 * Hebrew:
 * Hungarian:
 * Icelandic:
 * Irish: adharcán, aintéine
 * Italian:
 * Japanese: ; ヒゲ
 * Khmer:
 * Korean:
 * Lao: ຫນວດ
 * Luxembourgish: Antenn
 * Macedonian: пипка, антена
 * Malay: sesungut
 * Maori: hihi
 * Mongolian:
 * Persian:
 * Polish: ,
 * Portuguese:
 * Romanian:
 * Russian:, , ,
 * Serbo-Croatian:
 * Cyrillic: антена
 * Roman:
 * Slovak: tykadlo
 * Spanish:
 * Swedish:
 * Tagalog: sungot
 * Thai:
 * Ukrainian: ву́сик,
 * Vietnamese: (觸角)


 * Finnish: tuntosarvet


 * Turkish:
 * Volapük:

Etymology
From, the scientific senses were borrowed later.

Noun

 * 1) flagpole
 * 2)  yard
 * 3) device to receive or transmit radio signals: aerial (UK),  (US)
 * 4)  feeler organ on the head of an insect:

Etymology
May be from, from.

Noun

 * 1) yard on a ship
 * 2)  antenna in insects etc.