Expander
# Expander

Expander may refer to:

* Dynamic range compression operated in reverse
* Part of the process of signal compression
* Part of the process of companding
* A component used to connect SCSI computer data storage, devices together
* Turboexpander, a turbine for high-pressure gas
* Expander graph, a sparse graph used in the combinatorics branch of mathematics
* StuffIt Expander, a computer file decompressor software utility
* Micro Expander, also known as the Expander, an 8-bit S-100 microcomputer released in 1981
* "Expander" (song), a 1994 song by The Future Sound of London
* Orthodontic expander, a device to widen the upper jaw
* Disclosure widget, a widget that hides non-essential settings or information, also known as an expander
