a connection in a computer, especially a personal computer, to which a new board or card can be added to expand the computer's capabilities.
Words nearby expansion slot
Origin of expansion slot
First recorded in 1980–85
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
British Dictionary definitions for expansion slot
a physical electronic interface provided in a computer system to enable extra facilities to be added easily at a later date
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