doughnut

(redirected from Jam Doughnut)
Also found in: Dictionary, Thesaurus, Medical.

doughnut

(esp US), donut
anything shaped like a ring, such as the reaction vessel of a thermonuclear reactor
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005

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.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

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.
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.
References in periodicals archive ?
Kerry's jam doughnut flavour ice cream will be sold at Cardiff-based Cadwalader's Cafes throughout August.
A quality control document specifies the dimensions, texture and appearance for the perfect jam doughnuts: "The doughnut should be bold and light brown in colour.
NAUGHTY, NAUGHTY JAM DOUGHNUT, BREAD AND BUTTER PUDDING
Experts have classified any woman with a waist measuring over 35ins as medically obese289 This is the number of calories in a single jam doughnut. A 10 stone woman would have to run for 29 minutes at a 10-minute-mile pace to burn them off.
A 60g (2oz) jam doughnut has 250 calories while a round of tuna and cucumber sandwiches made with two slices of wholemeal bread is 240 calories.
I can, for example, go from Monday to Friday without a drop of alcohol; I've got the strength to resist the minxes who thrust a jam doughnut under my nose on Fridays and say: 'Go on, have one!' What's more, I don't bring change to work for the chocolate machine any more and even though there's been a secret stash of chocolate digestives under my bed for the past two months, there's still three-quarters of the packet left.
What do we have to do to get a traditional jam doughnut?
But when you're stuffing your face with a jam doughnut, how useful would it be to ensure all your sugar's dissolved at the touch of a button?
``Daddy?'' she said, exuding the impression that solid oxygen wouldn't melt in her mouth, even if she was gulping a red hot coffee, ``Yes?'' I said, with three-quarters of a Tescos' jam doughnut melting in mine, ``Why are you a fat man?'' ``Eh?
And each time a jam doughnut calls to me through a baker's window as I walk through the town, I will hopefully picture the beach, the sea and the dress - and resist.
Products made by Nestle and Boots were found to contain more sugar than a jam tart and a jam doughnut, and Farley's rusks more than chocolate digestives.
If you don't have children and want to know what a family car is then stick a jam doughnut in the glove compartment (leave for one month and remove) and crumble a pack of digestive biscuits on the back seat.