The definition of a layer is a single thickness or coat, or a hen that lays eggs.
(noun)An example of a layer is the frosting on a cake.
Layer is defined as to create levels.
(verb)An example of layer is to put on foundation, then loose powder, and then blush and bronzer.
See layer in Webster's New World College Dictionary
noun
intransitive verb
transitive verb
See layer in American Heritage Dictionary 4
noun
Learn more about layer