dish

(redirected from dishes)
Also found in: Dictionary, Thesaurus, Medical, Idioms, Wikipedia.

dish

A type of antenna used in radio telescopes and consisting of a large spherical or parabolic metal reflector, usually circular in outline, by means of which radio waves are brought to a focus above the dish center. The waves are collected at the focus by a secondary antenna, called a feed, or are reflected from a curved secondary to be brought to a focus elsewhere (see Cassegrain configuration). At low radio frequencies the feed may be a dipole mounted in front of a small reflector; at high frequencies it is usually a horn antenna (see waveguide). The signals picked up by the feed are transferred by means of the feeder to the receiver for amplification and analysis. Both the angular resolution and the sensitivity of the telescope to a point source increase with the area of the dish.

The dish is usually mounted so that it can be steered to point in different directions and can be made to track a moving object. Some dishes, however, can move in only one coordinate and rely on the Earth's rotation to provide coverage in the other coordinate. The 305-meter dish mounted in a natural hollow in the ground at the Arecibo radio telescope, Puerto Rico, achieves partial beam steering by moving the feed.

dish

[dish]
(electromagnetism)

dish

A parabolic reflector type of radio or radar antenna.

dish

A bowl-shaped antenna that receives signals from a satellite. See DBS and parabolic antenna.
References in classic literature ?
For, sure enough, when she looked at the dishes they had a moment before left upon the table, she found them all washed and dried and piled up into neat stacks.
Anne washed the dishes deftly enough, as Marilla who kept a sharp eye on the process, discerned.
"These- yes, these must go among the carpets," she said, referring to the Saxony china dishes.
With a zeal in reintroducing local and traditional dishes for the younger generation, Carangian prepared a gastronomic adventure at the Corniche restaurant, covering long-forgotten dishes from different regions in the country.
For months, Google has been asking Google Maps users to tag restaurant dishes by clicking pictures and adding names to them.
Mouth-watering dishes and special deals are on offer across County Durham throughout October.
This app is perfect for people who like to cook new and innovative dishes but are tired of trying to find their recipes when needed.
The high winds disturbed dishes resulting in a business boom for them.
: all items (as plates and silverware) used for cooking and eating food <Would you dry the dishes?>
Enhanced with full color photographs of finished dishes, this cornucopia of more than 150 kitchen-tested, "kitchen cook friendly", step-by-step, single-dish recipes range from Chicken Vegetable Soup Azteca; Green Chile and Pork Stew with Potatoes; and Braised Lamb Shanks; to Vegetarian Moussaka; Fried Rice with Chinese Sausage; and Barbecued Chicken Pizza.
Hot pots are generally served with condiments, such as fresh soy sprouts, chilies, or fresh herbs, so your dishes will require room to stir.
During dinner, I was quizzed about my own menu, what dishes I have done, and what my favourite dishes are.