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antenna    音標拼音: [ænt'ɛnə]
n. 天線,觸須,觸角

天線,觸須,觸角

antenna
天線

antenna
n 1: an electrical device that sends or receives radio or
television signals [synonym: {antenna}, {aerial}, {transmitting
aerial}]
2: sensitivity similar to that of a receptor organ; "he had a
special antenna for public relations" [synonym: {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 [synonym: {antenna}, {feeler}]

Antenna \An*ten"na\, n.; 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.
[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]

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