coving

US /ˈkoʊ.vɪŋ/
UK /ˈkoʊ.vɪŋ/
"coving" picture
1.

a concave molding or curved junction at the meeting of a wall and a ceiling

:
The room was finished with decorative coving around the ceiling.
Installing coving can add an elegant touch to any room.
1.

the act of forming a concave molding or curved junction

:
The plasterer was skilled in the art of coving.
Careful coving ensures a smooth transition between wall and ceiling.