from
The Collaborative International Dictionary of English v.0.48
Nut \Nut\ (n[u^]t), n. [OE. nute, note, AS. hnutu; akin to D.
noot, G. nuss, OHG. nuz, Icel. hnot, Sw. n["o]t, Dan.
n["o]d.]
[1913 Webster]
1. (Bot.) The fruit of certain trees and shrubs (as of the
almond, walnut, hickory, beech, filbert, etc.), consisting
of a hard and indehiscent shell inclosing a kernel.
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2. A perforated block (usually a small piece of metal),
provided with an internal or female screw thread, used on
a bolt, or screw, for tightening or holding something, or
for transmitting motion. See Illust. of 1st {Bolt}.
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3. The tumbler of a gunlock. --Knight.
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4. (Naut.) A projection on each side of the shank of an
anchor, to secure the stock in place.
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5. pl. Testicles. [vulgar slang]
[PJC]
{Check nut}, {Jam nut}, {Lock nut}, a nut which is screwed up
tightly against another nut on the same bolt or screw, in
order to prevent accidental unscrewing of the first nut.
{Nut buoy}. See under {Buoy}.
{Nut coal}, screened coal of a size smaller than stove coal
and larger than pea coal; -- called also {chestnut coal}.
{Nut crab} (Zool.), any leucosoid crab of the genus {Ebalia}
as, {Ebalia tuberosa} of Europe.
{Nut grass} (Bot.), See {nut grass} in the vocabulary.
{Nut lock}, a device, as a metal plate bent up at the
corners, to prevent a nut from becoming unscrewed, as by
jarring.
{Nut pine}. (Bot.) See under {Pine}.
{Nut rush} (Bot.), a genus of cyperaceous plants ({Scleria})
having a hard bony achene. Several species are found in
the United States and many more in tropical regions.
{Nut tree}, a tree that bears nuts.
{Nut weevil} (Zool.), any species of weevils of the genus
{Balaninus} and other allied genera, which in the larval
state live in nuts.
[1913 Webster]
from
The Collaborative International Dictionary of English v.0.48
nutgrass \nut"grass`\, nut grass \nut" grass`\, n.(Bot.),
A widely distributed perennial plant of the Sedge family
({Cyperus rotundus}, var. Hydra), which has slender
rootstocks bearing small, edible, nutlike tubers, by which
the plant multiplies exceedingly, especially in cotton
fields.
Syn: nutsedge, nut sedge, {Cyperus rotundus}.
[1913 Webster + WordNet 1.5]