n. 蒙头斗篷, 通风帽

[化] 风扇罩

[医] 帽

Cowl \Cowl\, n. [Cf. OF. cuvele, cuvel, dim. of F. cuve tub,
vat, fr. L. cupa. See {Cup}.]
A vessel carried on a pole between two persons, for
conveyance of water. --Johnson.


Cowl \Cowl\ (koul), n. [AS. cuhle, cugle, cugele; cf. dial. G.
kogel, gugel, OF. coule, goule; all fr. LL. cuculla,
cucullus, fr. L. cucullus cap, hood; perh. akin to celare to
conceal, cella cell. Cf. {Cucullate}.]
1. A monk's hood; -- usually attached to the gown. The name
was also applied to the hood and garment together.

What differ more, you cry, than crown and cowl?
--Pope.

2. A cowl-shaped cap, commonly turning with the wind, used to
improve the draft of a chimney, ventilating shaft, etc.

3. A wire cap for the smokestack of a locomotive.

4. (aviation) a removable metal covering for an aircraft
engine, providing streamlining to minimize wind
resistance; -- also called {cowling}.
[PJC]

5. a covering for a chimney or other ventilating shaft
functioning to increase the draft.
[PJC]