plein-air
blank" >target="_blank" >glossary/in-french/" class="glossaryLink" data-cmtooltip="db3af20321d81322557035fe9d12fdd4" blank" >target="_blank" >In blank" >target="_blank" >French, for “open air.” Plein-air blank" >target="_blank" >painting is the blank" >target="_blank" >glossary/practice/" class="glossaryLink" data-cmtooltip="4ddd1c4c5169067f3991b80a64e94fb4" blank" >target="_blank" >practice of blank" >target="_blank" >painting outdoors, which became more practical in the 1840s with the introduction of portable easels and oil paints in metallic tubes. It was pioneered by painters associated with the Barbizon School in blank" >France and the Hudson River School in the USA. (Kremer, 2023)
