In`stal*la"tion (?), n. [F. installation, LL. installatio: cf. It. installazione. See Install.]
The act of installing or giving possession of an office, rank, or order, with the usual rites or ceremonies; as, the installation of an ordained minister in a parish.
On the election, the bishop gives a mandate for his installation.
The whole of a system of machines, apparatus, and accessories, when set up and arranged for practical working, as in electric lighting, transmission of power, etc.
© Webster 1913.