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.
In contrast to evolutionary adaptation, acclimation is mostly phenotypic adaptation, although genetic processes may be involved (3). In mammals, heat acclimation can be achieved via prolonged exposure to moderate ambient heat at the upper edge of the bodyâs thermal comfort zone.