Definitions
1.nounOne of several parallel horizontal layers of material arranged one on top of another.
2.nounA layer of sedimentary rock having approximately the same composition throughout.
3.nounAny of the regions of the atmosphere, such as the stratosphere, that occur as layers.
4.nounA layer of tissue.
5.nounA class of society composed of people with similar social, cultural, or economic status.
6.nounA layer of vegetation, usually of similar height.
7.nounThe level of accuracy of a computer's clock, relative to others on the network.