From this page His (Nabokov's) wife later explained “iridule” to a curious reader: “We have often had the occasion to watch it at Telluride Colorado, in 1951. It is single i.e. not a double rainbow, like the “Twinned Iris” of the previous line, fairly rarely seen and most attractive.”
From this page
His (Nabokov's) wife later explained “iridule” to a curious reader: “We have often had the occasion to watch it at Telluride Colorado, in 1951. It is single i.e. not a double rainbow, like the “Twinned Iris” of the previous line, fairly rarely seen and most attractive.”