名詞 cowl:

1. protective covering consisting of a metal part that covers the engine
   同義詞：hood, bonnet, cowling
2. a loose hood or hooded robe (as worn by a monk)

動詞 cowl:

1. cover with or as with a cowl

cowl

n.（名詞）

The hood or hooded robe worn especially by a monk.
頭巾，長袍：尤指僧侶穿戴的頭巾或帶頭巾的長袍
A draped neckline on a woman`s garment.
女裝上成褶的衣領(lǐng)
A hood-shaped covering used to increase the draft of a chimney.
煙囪帽：一種用于增強煙囪內(nèi)氣流運動的頭巾狀罩子
The top portion of the front part of an automobile body, supporting the windshield and dashboard.
外殼罩：汽車車體前部的頂部，用以支撐擋風玻璃和遮泥板
The cowling on an aircraft.
整流罩：飛機的引擎外罩
v.tr.（及物動詞）
cowled,cowl.ing,cowls
To cover with or as if with a cowl.
（似乎）在…上裝帽（罩）

來源：
Middle English coule
中古英語 coule
from Old English cugele
源自 古英語 cugele
from Late Latin cuculla
源自 后期拉丁語 cuculla
from Latin cucullus [hood]
源自 拉丁語 cucullus [頭巾]