a physical electronic interface provided in a computer system to enable extra facilities to be added easily at a later date
expansion slot in American English
noun
Computing
a connection in a computer, esp. a microcomputer, to which a new board can be added to expand the computer's capabilities
Word origin
[1980–85]This word is first recorded in the period 1980–85. Other words that entered Englishat around the same time include: Santería, golden parachute, off-price, postfeminist, scientific creationism
Examples of 'expansion slot' in a sentence
expansion slot
However, this takes up a laptop's expansion slot and the cards stick out annoyingly.
Times, Sunday Times (2007)
Samsung's solution is to build an expansion slot into its high-end televisions.
Times, Sunday Times (2013)
The one down-side is that the player has no expansion slot, so you can't swap in memory cards with more songs.
Globe and Mail (2004)
Nobody, so the answer is this flat laptop mouse, which folds up and stores snugly inside the express-card expansion slot of newer laptops.