cowl          
noun [ C ] uk/kaʊl/ us/kaʊl/
 (尤指修士戴的)风帽,及肩斗篷
a large, loose covering for the head and sometimes shoulders, but not the face, worn especially by monks
  His face was hidden deep inside the cowl of his monk's-style robe.
 She lifted the cowl of her cloak.
  烟囱帽,通风帽
a metal cover on the top of a chimney that helps smoke to go up it and prevents wind from blowing down it
  It is not possible to install a gas log fire as it requires a chimney cowl.
 Fitting a cowl to a chimney may help it to draw better.
 - More examples
 - He came on stage wearing a monk's cowl.
 - The priest wore a cowl over his head.
 - The rusting chimney cowls shown in this image are part of the historic streetscape.
 - I live in a Victorian house with many chimney pots with terracotta cowls.
 - A metal tag on the engine cowl was the only clue to the car's history.
 - They replaced the aircraft's landing gear, repaired damaged cowls, and rebuilt the engines.
 - Heat waves shimmered from the top of the silver engine cowls.