Nut

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Related to a tough nut to crack: for good measure, out of whack, slip through the cracks, perish the thought

nut,

in botany, a dry one-seeded fruitfruit,
matured ovary of the pistil of a flower, containing the seed. After the egg nucleus, or ovum, has been fertilized (see fertilization) and the embryo plantlet begins to form, the surrounding ovule (see pistil) develops into a seed and the ovary wall (pericarp) around the
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 which is indehiscent (i.e., does not split open along a definite seam at maturity). Among the true nuts are the acorn, chestnut, and hazelnut. Commonly the word nut is used for any seed or fruit having an edible kernel surrounded by a hard or brittle covering. Thus the peanut pod is actually a legume, the Brazil nut is a seed enclosed with others in a capsule, and the almond is part of a drupe, a type of fruit that includes olives and peaches. Others that are not botanically true nuts are the cashew, coconut, litchi, pistachio, and walnut. Most nuts have a high content of oil; in addition they may contain substantial amounts of protein, carbohydrates, minerals, and vitamins. Although nuts were originally harvested from wild trees, this century has seen the increasing cultivation of nut orchards—especially in warmer climates—for commercial production both for food and for byproducts.

Bibliography

See J. G. Woodroof, Tree Nuts (2 vol., 1967); R. A. Jaynes, ed., Handbook of North American Nut Trees (rev. ed. 1973).


Nut

(no͝ot, nŭt), in Egyptian religion, sky-goddess. She was the sister-wife of the earth god Geb, to whom she bore Osiris, Isis, Set, and Nephthys. She was sometimes represented with her hands and feet on the earth and the curve of her body forming the vault of heaven.

Nut

 

part of a threaded connection or screw gear, with a threaded hole. A fastening nut in a threaded connection is screwed on the end of a bolt, a stud, the threaded part of a shaft, or an axle to prevent axial shifting of the parts mounted on the axle, such as pulleys or antifriction bearings. The use of locknuts prevents self-unscrewing. In screw gears, the nut has a greater length, which makes possible the maintenance of a small amount of pressure on the surface of the thread, the provision of reliable lubrication, and the prevention of rapid wear and jamming. These nuts are used in gears with motion, power, and load screws, such as those in lathe feeding mechanisms, measuring machines, and lifting jacks. The nuts for rolling-friction screw gears are a special type of nut in which tiny balls roll back and forth along the thread, thus reducing the wear of parts and increasing the efficiency of the gear.


Nut

 

an indehiscent, one-seeded syncarpous lower fruit with a woody pericarp (for example, the fruit of Corylus). The seeds of some pines (for example, Pinus cembra), the drupe of the English walnut, and the dry drupe of the coconut palm are incorrectly called nuts.

What does it mean when you dream about a nut?

Nuts symbolize the “squirreling away” of ideas or of one’s creativity for a more opportune time for receiving recognition and appreciation. They also represent the “kernel” or the “meat” of an idea or situation.

nut

[nət]
(botany)
A fruit which has at maturity a hard, dry shell enclosing a kernel consisting of an embryo and nutritive tissue.
An indehiscent, one-celled, one-seeded, hard fruit derived from a single, simple, or compound ovary.
(design engineering)
An internally threaded fasterner for bolts and screws.

nut

common types of nuts
A short metal block having a central hole which is threaded to receive a bolt, screw, or other threaded part. (See illustraion p. 670.)

nut

1. a dry one-seeded indehiscent fruit that usually possesses a woody wall
2. the edible kernel of such a fruit
3. a small square or hexagonal block, usu. metal, with a threaded hole through the middle for screwing on the end of a bolt
4. Mountaineering a variously shaped small metal block, usually a wedge or hexagonal prism (originally an ordinary engineer's nut) with a wire or rope loop attached, for jamming into a crack to provide security
5. Music
a. the ledge or ridge at the upper end of the fingerboard of a violin, cello, etc., over which the strings pass to the tuning pegs
b. the end of a violin bow that is held by the player
www.treenuts.org
www.users.globalnet.co.uk/~aair/nuts.htm
www.cooks.com
References in periodicals archive ?
Although conceding weight to such rivals as Oscars Business and Leavethelighton, I expect the Mullins runner to prove a tough nut to crack.
Port Talbot-based Lido, however, will be a tough nut to crack after being defeated finalists last year.
VERDICT Although there are couple of others in the field who can force it, I'd expect to see Jubilee Street set the pace here, and he could prove a tough nut to crack back over his ideal trip if he has come on for his recent reappearance over 7f at Warwick.
Blackburn Rovers will be a tough nut to crack, but it's vitally important to keep the interest going in the Cup for as long as possible as it can have a spin-off on the league.
Pepperdine had) given up 11 goals all year, so I knew they'd be a tough nut to crack.
Now unbeaten in nine league games since Boxing Day, the Lilywhites had found Carmarthen a tough nut to crack as Kaid Mohamed's 71st-minute strike looked to have settled the affair.
DAVIDO'LEARY could certainly do with some silverware to enhance his long-term job prospects at Aston Villa, but the prospect of Carling Cup final glory is a long way off yet, and Villa may find League One Doncaster a tough nut to crack at Belle Vue tonight.
ON THE BEST of nights, the Los Angeles dance audience is a tough nut to crack, but it seemed particularly stubborn on Tuesday, when San Francisco Ballet kicked off the Music Center's inaugural dance season with a new, bright and sunny staging of ``Don Quixote'' at the Dorothy Chandler Pavilion.
Wexford will be a tough nut to crack - particularly as they are at home," said Hutton.