What does "expander" mean?
Expander: Anything which causes expansion esp. (Mech.) a tool for stretching open or expanding a tube, etc.
Sources
- Webster's Unabridged Dictionary, 1913 edition (public domain, via GCIDE / Project Gutenberg).
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- Published: 2026-07-17T00:00:00-07:00 · Modified: 2026-07-17T00:00:00-07:00