1a way of sliding down a steep slope of snow or ice, typically on the feet with the support of an ice axe.
2 Ballet a movement, typically used as a joining step, in which one leg is brushed outwards from the body, which then takes the weight while the second leg is brushed in to meet it.
verb
[no object]
slide down a steep slope of snow or ice with the support of an ice axe:we wobbled down the line of ascent, glissading when we could
Origin:
mid 19th century: French, from glisser 'to slip, slide'
glissade in other Oxford dictionaries
Definition of glissade in the US English dictionary