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antenna

[an-ten-uh]

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noun, plural -ten·nas for 1, -ten·nae

[-ten-ee] for 2.

a conductor by which electromagnetic waves are sent out or received, consisting commonly of a wire or set of wires; aerial.

Zoology. one of the jointed, movable, sensory appendages occurring in pairs on the heads of insects and most other arthropods.

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Origin:
1640–50; < Latin: a sailyard

Related forms

an·ten·nal, adjective

post·an·ten·nal, adjective

Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2012.
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Antenna is always a great word to know.

So is echinodermata. Does it mean:

phylum of radially symmetrical coelomate marine invertabrates

phylum comprised of mollusks

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Example Sentences

Many indoor antennas cost much less than a directional roof antenna with a.

The sensors pick up the microwaves with an antenna and convert the signal into electrical energy.

View through a portion of the broadcast antenna that fell from the top of the north tower.

EXPAND

Many indoor antennas cost much less than a directional roof antenna with a.

The sensors pick up the microwaves with an antenna and convert the signal into electrical energy.

View through a portion of the broadcast antenna that fell from the top of the north tower.

The extra antenna allows smart phones to carry two signals over a single frequency.

Apple's keen on eliminating antenna woes in its products, even ones you may not even realize had antennas in the first place.

No protection is needed for a television antenna or flagpole whose mast enters the earth.

Your correspondent installed a broadcast antenna to receive high-definition television.

Brown, are relayed by an antenna on the bow to a communications.

The antenna receives waves reflected by objects in the beam's path.

For a television antenna whose mast enters the earth, no protection is necessary.

America's navy is developing an antenna made of seawater.

Ten men then slid a tree trunk turned antenna tower into the same pit, and a park guard switched on the contraption in a hut.

The plan is familiar: park an antenna high in the stratosphere and then relay signals to and from devices below.

Replacing the router's stock antenna with a high gain alternative is a good start.

The viewers may also need to adjust their antenna or purchase a new antenna.

The crew will take measurements and attach a tracking antenna to the dorsal fin before returning it to the water unharmed.

Also your antenna would have to track the satellite to maintain contact.

For instance, the antenna in a flexible silicone shell could be attached to a bridge.

It is played by moving the right hand in the air near the antenna.

During this time its main antenna dish, which measures four meters across, will shield the craft against dust particles.

Its three-line display, bullet antenna and matte black finish do little to attract the eye.

The satellite has a receiving antenna for the feed from the ground station.

Some other effect is at work here that is not well explained by the author or by conventional antenna theory.

Some of it bounces off the ground around the actual antenna.

The antenna was connected to an oscilloscope which was used to capture the radio signal picked up by the antenna.

The energy density would be able to support cattle ranching on the land over the receiving antenna.

Working together, a spread-out array of antennas can peer farther and with more sensitivity than a single antenna alone.

Its backers say the gold-plated orbiting antenna is small enough to fit in the cargo bay of the space shuttle.

When you set your receiver to so many cycles per second, you tune the antenna circuit to pluck that.

The nitrogen is pumped through a quartz tube wrapped in a coiled antenna and surrounded by magnets.

She had attached a bit of guitar string to the transmitter, to act as an antenna.

One is to use the directed energy beam as a weapon which would primarily disrupt antenna arrays on the ground or in aircraft.

Reppert and his team had been studying the ability of butterfly antenna to sense odors when they uncovered something surprising:.

Apple's newest handset seems to have a minor problem with its antenna band.

Like myself, millions of people here are renters, and can't even install a wireless antenna on the roof.

The quantum wizardry appears to occur in each of a photosynthetic cell's millions of antenna proteins.

For household or office use it can be bought with a docking cradle, an antenna and a remote control.

All you need is an antenna to pick up that free power from the sun.

The springy antenna were borrowed from an original hexbug.

These devices have an internal antenna and an external one that can be mounted on a window or outside wall.

The iPhone is carefully positioned to a model of a human male head such that the antenna is near the jaw.

Its main antenna failed to unfurl and some instruments were damaged by belts of radiation.

Low-rent antenna and lack of wireless functionality are unacceptable at this price.

Both windmill and antenna will profit from the elevation.

Based on the photo, the phone also appears to do away with the separate black plastic end piece that covers the antenna.

There they bought a tool to put the high-mounted antenna on the new vehicle's.

There's even a little suction-cup to stick the antenna to the cubicle wall.

Terrestrial digital transmits programs by beaming them from land-based antenna to antenna.

COLLAPSE

Collins

World English Dictionary

antenna (ænˈtɛnə)

—n , -nae, -nas
1.	one of a pair of mobile appendages on the heads of insects, crustaceans, etc, that are often whiplike and respond to touch and taste but may be specialized for swimming or attachment
2.	another name for aerial

[C17: from Latin: sail yard, of obscure origin]

an'tennal

—*adj*

an'tennary

—*adj*

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
Cite This Source

Etymonline

Word Origin & History

antenna

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 base *temp- "to stretch, extend." In this sense, it is a loan-transl. of Gk. keraiai "horns" (of insects). Modern use in radio, etc., for "aerial wire" is

EXPAND

from 1902.

COLLAPSE

American Heritage

Science Dictionary

antenna

(ān-těn'ə) Pronunciation Key

One of a pair of long, slender, segmented appendages on the heads of insects, centipedes, millipedes, and crustaceans. Most antennae are organs of touch, but some are sensitive to odors and other stimuli.
A metallic device for sending or receiving electromagnetic waves, such as radio waves. Some antennas can send waves in or receive waves from all directions; others are designed to work only in a range of directions.

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