Dictionary.com
Thesaurus.com

ascensionist

British  
/ əˈsɛnʃənɪst /

noun

  1. mountaineering a person who has completed a mountain ascent, esp a notable one

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Mr. Reed is an accomplished rock climber who is known in climbing circles as a first ascensionist — someone who develops new lines, or routes, up a particular destination.

From New York Times

The ascensionist said nothing to the contrary,--he trembled more violently,--but the people sought for him who had said it, and cried, "It is he with the mask, for he is no more to be found."

From Project Gutenberg

Then he would hastily take down his ascensionist outfit and, swearing at himself, put it on.

From Project Gutenberg

What else could they suppose of the president of an Alpine Club, a renowned ascensionist, of whom his friends spoke only with "Ahs!" and exultant gestures.

From Project Gutenberg