Its called a Stalactite---The icicle-like things that hang from the ceiling of a cave are called "stalactites" whilst the ones that are directly under them and go up from the ground are called "stalagmites". The easy way to remember the difference is that "stalactites" hang TIGHT (tite) to the ceiling and "stalagmites" are MIGHTy sturdy on the ground. I realize it sounds corny but it makes you remember.- Lightning_Po
fenetre en hauteur de piece
A Planetarium.
The ceiling to the weather zone is the Tropopause.
hang from the ceiling
The window in a ceiling or roof is called a Skylight.
Ceiling Mount Traverse Rod
The line where the ceiling meets the wall is called a cornice. A cornice can be set off from the ceiling with the use of cornice trim. The line where the wall meets the floor is called a baseboard.
The architectural term is "vault"; some call it a cathedral ceiling.
A sky light
oubliette
ceiling
the headliner or roof
A ceiling painting is called a mural. Most people think of a mural as a wall painting, but it extends to floors and ceilings as well. the definition of a mural does say it is directly painted on the walls, floor or ceiling.
Mural
Its is called a chandelier.
Dome light