Built-in, builtin, or built in may more specifically refer to: ...
A valve installed where the body is recessed in the wall.
[adj] - existing as an essential constituent or characteristic
Support fixings to beams that prevent end rotations under load (fixed and encastre).
A valve installed where the body is recessed in the wall.
constitutional adjective existing as an essential constituent or characteristic; `the Ptolemaic system with its built-in concept of periodicity`; `a constitutional inability to tell the truth`
built so as to be an integral and permanent part of a larger construction: The wall has a built-in bookcase. · existing as a natural or characteristic part of something; inherent: a built-in contempt for daydreaming.