a device or substance that causes something to expand or stretch out, a tool used to enlarge a hole or shape metal

Formal and Informal Expressions of expander

In different contexts, you can replace 'expander' with suitable alternatives. In a more formal setting, 'enlarger, dilator' is apt. In informal speech or writing, 'stretcher, widener' is a commonplace synonym.

expander: Explore its Definition & Usage

expander Definition

1a device or substance that causes something to expand or stretch out
2a tool used to enlarge a hole or shape metal

Using expander: Examples

Take a moment to familiarize yourself with how "expander" can be used in various situations through the following examples!

Example
The orthodontist used an expander to widen her patient's jaw.
Example
The foam insulation acts as an expander, filling in gaps and cracks.
Example
The metalworker used an expander to shape the sheet metal into a curved form.

expander Synonyms and Antonyms

Synonyms for expander

stretcher
enlarger
widener
dilator

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Summary: expander in Brief

An 'expander' [ɪkˈspændər] is a device or substance that causes something to expand or stretch out. It can also refer to a tool used to enlarge a hole or shape metal. Examples include an orthodontic expander, foam insulation, and a metalworking tool.