2D Shapes Definition. '2D' stands for 2-dimensional. A 2D shape is any shape that has two dimensions. Think about what it means to have two dimensions for a moment. If we had only one dimension to work with, we could only move backwards or forwards in a line. A line is one-dimensional.
Learner's definition of ACCLIMATE. US. : to adjust or adapt to a new climate, place, or situation â usually + to. [no object] He was never really able to acclimate to the hot weather. [=to get used to the hot weather] The mountain climbers spent a few days acclimating [=becoming adjusted] to the high altitude.
Share. Sublimation Definition: Sublimation is the transition from the solid phase to the gas phase without passing through an intermediate liquid phase. This endothermic phase transition occurs at temperatures and pressures below the triple point. By Anne Marie Helmenstine, Ph.D. Example: Dry ice is solid carbon dioxide.