n. 坚果, 核心, 螺帽

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[医] 核果, 坚果

Nut \Nut\, v. i. [imp. & p. p. {Nutted}; p. pr. & vb. n.
{Nutting}.]
To gather nuts.


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.]
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.

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}.

3. The tumbler of a gunlock. --Knight.

4. (Naut.) A projection on each side of the shank of an
anchor, to secure the stock in place.

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} (Zo["o]l.), 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} (Zo["o]l.), any species of weevils of the genus
{Balaninus} and other allied genera, which in the larval
state live in nuts.