substation

[ suhb-stey-shuh n ]
/ ˈsʌbˌsteɪ ʃən /

noun

a branch of a main post office.
an auxiliary power station where electrical current is converted, as from AC to DC, voltage is stepped up or down, etc.

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Origin of substation

First recorded in 1885–90; sub- + station
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Example sentences from the Web for substation

British Dictionary definitions for substation

substation
/ (ˈsʌbˌsteɪʃən) /

noun

a subsidiary station
an installation at which electricity is received from one or more power stations for conversion from alternating to direct current, reducing the voltage, or switching before distribution by a low-tension network
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012