arch
[ɑ:tʃ]
n. 拱门, 拱形, 足弓

vt. 使弓形

vi. 拱起, 弓形

a. , 调, 傲礼, 狡猾

[医] 弓

1. The cat arched its back in anger.
   那猫气拱起腰。
2. The bridge has three arches.
   座桥座拱洞。
3. The cat arched its back when it saw the dog.
   那猫看见狗拱起背。

arch
[ noun ]

1. a curved shape in the vertical plane that spans an opening

<noun.shape>

2. a curved bony structure supporting or enclosing organs (especially the inner sides of the feet)

<noun.body>

3. a passageway under a curved masonry construction

<noun.artifact>
they built a triumphal arch to memorialize their victory

4. (architecture) a masonry construction (usually curved) for spanning an opening and supporting the weight above it

<noun.artifact>

[ verb ]

1. form an arch or curve

<verb.motion> arc curve
her back arches
her hips curve nicely

[ adj ]

1. (used of behavior or attitude) characteristic of those who treat others with condescension

<adj.all>

2. expert in skulduggery

<adj.all>
an arch criminal

3. naughtily or annoyingly playful

<adj.all>
teasing and worrying with impish laughter
a wicked prank

Arch \Arch\ ([aum]rch), n. [F. arche, fr. LL. arca, for arcus.
See {Arc}.]
1. (Geom.) Any part of a curved line.

2. (Arch.)
(a) Usually a curved member made up of separate
wedge-shaped solids, with the joints between them
disposed in the direction of the radii of the curve;
used to support the wall or other weight above an
opening. In this sense arches are segmental, round (i.
e., semicircular), or pointed.
(b) A flat arch is a member constructed of stones cut into
wedges or other shapes so as to support each other
without rising in a curve.

Note: Scientifically considered, the arch is a means of
spanning an opening by resolving vertical pressure into
horizontal or diagonal thrust.

3. Any place covered by an arch; an archway; as, to pass into
the arch of a bridge.

4. Any curvature in the form of an arch; as, the arch of the
aorta. ``Colors of the showery arch.'' --Milton.

{Triumphal arch}, a monumental structure resembling an arched
gateway, with one or more passages, erected to commemorate
a triumph.


Arch \Arch\, v. t. [imp. & p. p. {Arched} ([aum]rcht); p. pr. &
vb. n. {Arching}.]
1. To cover with an arch or arches.

2. To form or bend into the shape of an arch.

The horse arched his neck. --Charlesworth.


Arch \Arch\, v. i.
To form into an arch; to curve.


Arch \Arch\ (["a]rch), a. [See {Arch-}, pref.]
1. Chief; eminent; greatest; principal.

The most arch act of piteous massacre. --Shak.

2. Cunning or sly; sportively mischievous; roguish; as, an
arch look, word, lad.

[He] spoke his request with so arch a leer.
--Tatler.


Arch \Arch\, n. [See {Arch-}, pref.]
A chief. [Obs.]

My worthy arch and patron comes to-night. --Shak.