(entomology) Any of various species of dragonfly of the genus Zygonyx, family Libellulidae, which commonly inhabit watercourses with waterfalls.

plural of cascader

Relating to a cascade

Wet, heavy and often sticky snow, which makes skiing and snowboarding difficult.

(ecology) The secondary disruptions that go cascading through a system from which a keystone species has been removed.

A mountain range in western North America.

plural of trophic cascade

(physics) A method of attaining successively lower temperatures by utilizing the cooling effect of the expansion of one gas in condensing another less easily liquefiable, and so on.

(biochemistry) A series of biochemical reactions between a stimulated receptor and an effector

One of 56 counties in Montana, United States. County seat: Great Falls.