Dictionary
Thesaurus
Reference
Translate
Web
substation - 3 dictionary results

sub⋅sta⋅tion

[suhb-stey-shuhn]
–noun
1. a branch of a main post office.
2. an auxiliary power station where electrical current is converted, as from AC to DC, voltage is stepped up or down, etc.

Origin:
1885–90; sub- + station
sub·sta·tion   (sŭb'stā'shən)   
n.  A subsidiary or branch station, as of a post office or an electric utility.

substation 
1881, in the policing sense, from sub- + station. Power grid sense is attested from 1901.
Search another word or see substation on Thesaurus | Reference