noun ·Rare ·Advanced level

Definitions

Noun

1. 1
   One who, or that which, dilates, expands, or enlarges.
2. 2
   a surgical instrument that is used to dilate or distend an opening or an organ wordnet

Synonyms

All synonyms

dilatordilator

Etymology

From dilate + -er.

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.