桶箍

Hoop \Hoop\, n. [OE. hope; akin to D. hoep, hoepel.]
1. A pliant strip of wood or metal bent in a circular form,
and united at the ends, for holding together the staves of
casks, tubs, etc.

2. A ring; a circular band; anything resembling a hoop, as
the cylinder (cheese hoop) in which the curd is pressed in
making cheese.

3. A circle, or combination of circles, of thin whalebone,
metal, or other elastic material, used for expanding the
skirts of ladies' dresses; crinoline; -- used chiefly in
the plural.

Though stiff with hoops, and armed with ribs of
whale. --Pope.

4. A quart pot; -- so called because originally bound with
hoops, like a barrel. Also, a portion of the contents
measured by the distance between the hoops. [Obs.]

5. An old measure of capacity, variously estimated at from
one to four pecks. [Eng.] --Halliwell.

{Bulge hoop}, {Chine hoop}, {Quarter hoop}, the hoop nearest
the middle of a cask, that nearest the end, and the
intermediate hoop between these two, respectively.

{Flat hoop}, a wooden hoop dressed flat on both sides.

{Half-round hoop}, a wooden hoop left rounding and undressed
on the outside.

{Hoop iron}, iron in thin narrow strips, used for making
hoops.

{Hoop lock}, the fastening for uniting the ends of wooden
hoops by notching and interlocking them.

{Hoop skirt}, a framework of hoops for expanding the skirts
of a woman's dress; -- called also {hoop petticoat}.

{Hoop snake} (Zo["o]l.), a harmless snake of the Southern
United States ({Abaster erythrogrammus}); -- so called
from the mistaken notion that it curves itself into a
hoop, taking its tail into its mouth, and rolls along with
great velocity.

{Hoop tree} (Bot.), a small West Indian tree ({Melia
sempervirens}), of the Mahogany family.