dictionary layers
Definition of layer. 1  transitive verb. 2  1 : to propagate (a plant) by means of layers. 3  2a : to place as a layerb : to place a layer on top of pancakes layered with butter and syrupc : to form or arrange in layers.  intransitive 1  verb. 1a : to separate into layersb : to form out of superimposed layers.