antenna

2 definitions found

From The Collaborative International Dictionary of English v.0.48 [gcide]:

Antenna \An*ten"na\, noun; pl. {Antenn[ae]}. [L. antenna sail-yard; NL., a feeler, horn of an insect.]

1. (Zool.) 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.

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]

From WordNet (r) 3.0 (2006) [wn]:

antenna

noun

1: an electrical device that sends or receives radio or television signals [syn: {antenna}, {aerial}, {transmitting aerial}]

2: sensitivity similar to that of a receptor organ; "he had a special antenna for public relations" [syn: {antenna}, {feeler}]

3: one of a pair of mobile appendages on the head of e.g. insects and crustaceans; typically sensitive to touch and taste [syn: {antenna}, {feeler}]


The dictionary definitions are retrieved from a local copy of two of the open source DICT dictionaries. Click here for the database copyright information. DEFINE.COM is registered as an educational NONPROFIT corporation. We aim to please around here. We believe in using positive reinforcement to get things done. We make suggestions that are intended to make life more enjoyable. We think about efficiency, automation, security, PRIVACY, social and ecological responsibility and positive HUMANITARIAN ethics and VALUES. We are benevolent. DO NO HARM is our motto.



Saturday, March 28, 2015 1:46:19 AM Coordinated Universal Time (UTC)

DEFINE.COM_antenna_2015-03-28_01-46-19_23-22-53-212