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.
- an·ten·nal, adjective
- post·an·ten·nal, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
How to use antenna in a sentence
Internal antennas provide better WiFi coverage, higher speed, and will permanently rid your home of dead zones.Electronics and exercise gear that make excellent gifts | PopSci Commerce Team | October 8, 2020 | Popular-Science
The handle has the antenna built into it for FM reception, and folds down to act as a stand if you don’t mind your music blasting into the ground or table.Teenage Engineering’s OB-4 ‘magic radio’ is a weird and beautiful wireless speaker | Devin Coldewey | October 1, 2020 | TechCrunch
Not only are its signals much stronger at ground level, but the antennas for its microwave frequencies are about 10 times more directional than GPS antennas.SpaceX’s Starlink satellites could make US Army navigation hard to jam | Niall Firth | September 28, 2020 | MIT Technology Review
Your hand will block the signal, so the solution to that is multiple antennas that work around your hand position.Qualcomm is bringing 5G to everyone with cheap 5G Snapdragon chips | Ron Amadeo | September 3, 2020 | Ars Technica
These are ground-based networks of antennas and GPS receivers.Lightning megaflashes set big new distance and duration records | Carolyn Gramling | July 21, 2020 | Science News For Students
The mission itself is simply a small computer powered by solar cells, with an antenna transmitting at 145.980 MHz.Luxembourg and China Team Up on Private Mission to the Moon | Matthew R. Francis | October 26, 2014 | THE DAILY BEAST
You cannot just come up with a vampire who is green and has an antenna.Vampires without Glitter or Girl Problems: Inside Guillermo del Toro’s ‘The Strain’ | Andrew Romano | July 14, 2014 | THE DAILY BEAST
Holding a portable antenna high over his head, he surveyed the area as it emitted a series of telling bleeps.Borana Joins the Fight to Save Kenya’s Rhinos…and Wants You to Help Too | Joanna Eede | February 18, 2014 | THE DAILY BEAST
Yet with the phone simply "on," the scientists found a significant change in brain activity in the areas closest to its antenna.Study Finds Cellphone Radiation Changes Brain Activity | Claudia Kalb | February 22, 2011 | THE DAILY BEAST
His cellphone, he says proudly, is the kind that still has an antenna, and he uses it, naturally, only to make phone calls.
For the antenna and lead-in and ground wires, Jessie purchased three hundred feet of copper wire, number fourteen.The Campfire Girls of Roselawn | Margaret Penrose
I discovered a short between the automatic trigger and the ship's secondary communication antenna.Indirection | Everett B. Cole
Arcot pointed toward a tall, oddly-shaped antenna that rose from the highest building of the city.Islands of Space | John W Campbell
That antenna is similar to those we found on the planets of the Black Star; it's a heat screen.Islands of Space | John W Campbell
After making a careful mark on the setting circle, Jason turned the receiving antenna through one hundred eighty degrees of arc.Deathworld | Harry Harrison
British Dictionary definitions for antenna
plural -nae (-naɪ) 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
plural -nas another name for aerial (def. 7)
- antennal or antennary, adjective
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Scientific definitions for antenna
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.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.