rognon
noun
mountaineering an isolated rock outcrop on a glacier
Word Origin for rognon
C20: literally: kidney
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
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Examples from the Web for rognon
Historical Examples of rognon
The name of the Chef Rtisseur, curiously enough, was Rognon.
BelgiumGeorge W. T. (George William Thomson) Omond
Across this portion of the glacier we proceeded westward, purposing to attempt the ascent at the Rognon side.
Hours of Exercise in the AlpsJohn Tyndall
Among its more important affluents are, on the right the Rognon, and on the left the Blaise.