cullis

• 名词，指屋顶上用于引导水流的沟槽或管道，即檐槽、天沟或排水槽。

A noun referring to a gutter or channel in a roof, used for directing water flow.

1. Gutter in a roofC2formalbritish

   A channel or groove, often in a roof, designed to carry away rainwater.

   天沟

   • The old house had a cullis that directed rainwater away from the walls.
   • The roofer repaired the damaged cullis to prevent leaks.
   • Water flowed smoothly through the cullis after the blockage was cleared.

   同义词channelguttertrough