Antenna An*ten"na, n.; pl. {Antenn[ae]}. [L. antenna sail-yard; NL., a feeler, horn of an insect.] 1. (Zo["o]l.) A movable, articulated organ of sensation, attached to the heads of insects and Crustacea. There are two in the former, and usually four in the latter. They are used as organs of touch, and in some species of Crustacea the cavity of the ear is situated near the basal joint. In insects, they are popularly called horns, and also feelers. The term in also applied to similar organs on the heads of other arthropods and of annelids. [1913 Webster]

2. (Electronics) A metallic device, variously shaped, designed for the purpose of either transmitting or receiving radio waves, as for radio or television broadcasting, or for transmitting communication signals. Some types are: {whip antenna}, {antenna tower}, {horn antenna}, {dish antenna}, {directional antenna} and {rabbit ears}. See {transmitter}, {receiver}. [PJC]

The Collaborative International Dictionary of English. 2000.

Look at other dictionaries:

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  • ANTENNA — Graece κερας πλοιοῦ, κεραίαρκήσιον, lignum transversum in navi ad malum, cui velum alligatur. Ad cuius similitudinem pars crucis apud Veteres transversaria quoque Antenna dicta, quod arrectaria mali instar haberet, vide infra voce Suppedancum. De …   Hofmann J. Lexicon universale

  • antenna — /an ten:a/ s.f. [dal lat. antenna ]. 1. (marin.) [corpo ligneo allungato che sostiene una vela triangolare] ▶◀ pennone. 2. a. [corpo ligneo allungato che sostiene bandiere, stendardi, ecc.] ▶◀ asta, pennone. b. (poet.) [arma da lancio] …   Enciclopedia Italiana

  • antenna — (n.) 1640s, feeler or horn of an insect, from L. antenna sail yard, the long yard that sticks up on some sails, of unknown origin, perhaps from PIE root *temp to stretch, extend. In the etymological sense, it is a loan translation of Aristotle s… …   Etymology dictionary

  • Antenna — (lat.), 1) Segelstange; 2) Querbalken am Kreuze; 3) (Zool.), so v.w. Fühlhorn …   Pierer's Universal-Lexikon

  • Antenna — Antenna, Pizzo dell , Berg im Madoniegebirge (Sizilien), 1975 m hoch …   Meyers Großes Konversations-Lexikon

  • antenna — has the plural form antennae (relating to the sensory organs of insects) and antennas (relating to radio aerials) …   Modern English usage

  • antenna — [n] appendages for sensing, usually on insects or electronics aerial, bird snapper*, bullwhip*, ears*, feelers*, rabbit ears, receiver, sky wire*, whip*, wire; concept 464 …   New thesaurus

  • antenna — ► NOUN (pl. antennae) 1) each of a pair of long, thin sensory appendages on the heads of insects, crustaceans, etc. 2) (pl. also antennas) an aerial. ORIGIN Latin, alteration of antemna yard (of a ship s mast) …   English terms dictionary

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