World English Dictionary
dilator, dilater or dilatator (daɪˈleɪtə, dɪ-, daɪˈleɪtə, dɪ-, ˌdaɪləˈteɪtə, ˌdɪ-)
1.  something that dilates an object, esp a surgical instrument for dilating a bodily cavity
2.  a muscle that expands an orifice or dilates an organ
dilater, dilater or dilatator
dilatator, dilater or dilatator

Collins English Dictionary - Complete & Unabridged 10th Edition
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American Heritage
Medical Dictionary

dilatator dil·a·ta·tor (dĭl'ə-tā'tər, dī'lə-)
See dilator.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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