Nut


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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 classic literature ?
It comes o' sittin' on th' grass under a tree wi' Dickon an' wi' Captain an' Soot an' Nut an' Shell.
He had hardly spoken when a shower of nuts and twigs spattered down through the branches; and they could hear coughings and howlings and angry jumpings high up in the air among the thin branches.
In the evening, when she had washed up and was ready, she felt in her pocket and found the three nuts which the old toad had given her.
Down below there was a noise of nut crackers, and a fat squirrel voice and a thin squirrel voice were singing together--
Now, whether it was that they had eaten so many nuts that they could not walk, or whether they were lazy and would not, I do not know: however, they took it into their heads that it did not become them to go home on foot.
The end of the hook was inserted from the outside, and Charley, on the inside, screwed the nut on tightly.
I really don't know when we should have stopped if Sally had not got choked with the nut she had in her mouth, and so frightened us nearly out of our wits.
I hope that you will be among those who will not "stick to break the shell of the nut for the kernel's sake," and that although the "sense be somewhat dark" you will some day read the book for yourselves.
You are so very irreligious, so exceedingly undutiful, so horribly profane,' rejoined his father, turning his face lazily towards him, and cracking another nut, 'that I positively must interrupt you here.
Alone or with other boys he went every afternoon into the woods to gather nuts.
It's my nuts and raisins from dinner," replied Rebecca, who never succeeded in keeping the most innocent action a secret from her aunt Miranda; "they're just what you gave me on my plate.
angels sing Psalms;' says he, 'I wish to be a little angel here below;' he then gets two nuts in recompense for his infant piety.