expander

English

Etymology

expand +‎ -er.

Pronunciation

• Audio (Southern England):

  (file)

Noun

expander (plural expanders)

1. One who or that which expands.
2. (dentistry) A device used to widen the upper jaw so that the bottom and upper teeth will fit together better; a palatal expander.
3. (graphical user interface) A control that expands to show more options or commands, keeping them hidden until needed.
4. (graph theory) A kind of sparse graph with strong connectivity properties.

Derived terms

• chest expander
• palatal expander
• palate expander
• plasma expander
• volume expander

 

Anagrams

• reexpand, reëxpand