Meaning of stratum
Pronunciation: (strā'tum, strat'um), [key]
— pl. stra•ta stra•tums.
- a layer of material, naturally or artificially formed, often one of a number of parallel layers one upon another: a stratum of ancient foundations.
- one of a number of portions or divisions likened to layers or levels: an allegory with many strata of meaning.
- a single bed of sedimentary rock, generally consisting of one kind of matter representing continuous deposition.
- a layer of tissue; lamella.
- (in a plant community) a layer of vegetation, usually of the same or similar height.
- a layer of the ocean or the atmosphere distinguished by natural or arbitrary limits.
- a level or grade of a people or population with reference to social position, education, etc.: the lowest stratum of society.
- (in stratificational grammar) a major subdivision of linguistic structure. Cf.(def. 18).
- stratum (Thesaurus)