expander

expander

English

Alternative forms

Etymology

Etymology tree
English expand
Proto-Indo-European *-yósder.
Proto-Italic *-āsjos
Latin -āriusnom.
Latin -āriusbor.
Proto-Germanic *-ārijaz
Proto-West Germanic *-ārī
Old English -ere
Middle English -ere
English -er
English expander

    From 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.
    4. (graphical user interface) A control that expands to show more options or commands, keeping them hidden until needed.
      Synonym: disclosure widget
      Hyponym: disclosure triangle
    5. (graph theory) A kind of sparse graph with strong connectivity properties.

    Derived terms

    Translations

    Translations

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