doughnut

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doughnut

(esp US), donut
anything shaped like a ring, such as the reaction vessel of a thermonuclear reactor

doughnut

[′dō‚nət]
(nucleonics)
Also spelled donut.
The toroidal vacuum chamber in which electrons are accelerated in a betatron or synchrotron. Also known as toroid.
An assembly of enriched fissionable material, often doughnut-shaped, used in a thermal reactor to provide a local increase in fast neutron flux for experimental purposes.
(petroleum engineering)
A ring of wedges or a threaded, tapered ring that supports a pipe string.

concrete collar, doughnut

A collar of reinforced concrete which is placed around an existing column so that it can be jacked up; the shrinkage of the concrete causes it to grip the column firmly.
References in periodicals archive ?
We believe it's time to make the doughnuts when customers want them, and we believe the doughnuts should always be hot and made exactly the way the customer wants to enjoy them," said Ken Jenkins, Maryland franchisee for Fractured Prune Doughnuts.
Dunkin' Donuts is also giving away free doughnuts at any of the franchise's 6,700 shops in the United States that are participating in the promotion, provided that customers buy a beverage.
Hayes carefully put the maple icing and shavings on 36 doughnuts that were ready for her attention.
Hanson Gregory from New England is widely credited with putting the hole in doughnuts.
After all, the doughnut is the first cousin of the Colombian bunuelo.
One way to picture the situation is to think of a solid torus, or doughnut sh ape, made up of stretched rubber bands, each running once around the doughnut's hole.
In addition to flour, doughnuts may also include such ingredients as water, leavening, eggs, milk, sugar, oil/shortening, natural flavors and/or artificial flavors.
Star sightings and fad diets are part of life in the San Fernando Valley, but so is eating carb-laced, trans fat-packed, sugar-coated doughnuts by the dozen.
Word spread and soon, Salvation Army lassies were making doughnuts wherever war was being fought.
The line for coffee at Starbucks on Wednesday morning was almost out the door, but so was the line for coffee and doughnuts at the Lims' place.