Synonym: bonnet, cowling, hood. Similar words: scowl, cowling, cowlick, scowling, cow, cows, cower, cowed. Meaning: [kaʊl] 
n. 1. protective covering consisting of a metal part that covers the engine 2. a loose hood or hooded robe (as worn by a monk). v. cover with or as with a cowl.
n. 1. protective covering consisting of a metal part that covers the engine 2. a loose hood or hooded robe (as worn by a monk). v. cover with or as with a cowl. 
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31. Changes of sidewall sweep angle and cowl position can influence inlet performance such as mass capture, total pressure recovery coefficient and uniformity of isolator exit flow field.
32. A cover , including an air cowl , is removably mounted to the housing proximate the air inlet.