AIGUILLE • DICTIONARY ONE.COM • Definition of Aiguille

... and showed its fallacy, with respect to the cap or helmet cloud, in the fifth volume of 'Modern Painters,' page 124, in the terms given in the subjoined note,[A] but I still retained the explanation of Saussure for the lee-side cloud, engraving in plate 69 the modes of its occurrence on the Aiguille Dru, of which the most ordinary one was afterwards represented by Tyndall in his 'Glaciers of the Alps,' under the title of 'Banner-cloud.' Its less imaginative title, in 'Modern Painters,' of 'Lee-side cloud,' is more comprehensive, for this cloud forms often under the brows of far-terraced ...

— The Storm-Cloud of the Nineteenth Century - Two Lectures delivered at the London Institution February - 4th and 11th, 1884 • John Ruskin