胡桃形浮标

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.


Buoy \Buoy\ (bwoi or boi; 277), n. [D. boei buoy, fetter, fr.
OF. boie, buie, chain, fetter, F. bou['e]e a buoy, from L.
boia. ``Boiae genus vinculorum tam ferreae quam ligneae.''
--Festus. So called because chained to its place.] (Naut.)
A float; esp. a floating object moored to the bottom, to mark
a channel or to point out the position of something beneath
the water, as an anchor, shoal, rock, etc.

{Anchor buoy}, a buoy attached to, or marking the position
of, an anchor.

{Bell buoy}, a large buoy on which a bell is mounted, to be
rung by the motion of the waves.

{Breeches buoy}. See under {Breeches}.

{Cable buoy}, an empty cask employed to buoy up the cable in
rocky anchorage.

{Can buoy}, a hollow buoy made of sheet or boiler iron,
usually conical or pear-shaped.

{Life buoy}, a float intended to support persons who have
fallen into the water, until a boat can be dispatched to
save them.

{Nut buoy} or {Nun buoy}, a buoy large in the middle, and
tapering nearly to a point at each end.

{To stream the buoy}, to let the anchor buoy fall by the
ship's side into the water, before letting go the anchor.


{Whistling buoy}, a buoy fitted with a whistle that is blown
by the action of the waves.