Search Result for "stratum": 
Wordnet 3.0

NOUN (3)

1. one of several parallel layers of material arranged one on top of another (such as a layer of tissue or cells in an organism or a layer of sedimentary rock);

2. people having the same social, economic, or educational status;
- Example: "the working class"
- Example: "an emerging professional class"
[syn: class, stratum, social class, socio-economic class]

3. an abstract place usually conceived as having depth;
- Example: "a good actor communicates on several levels"
- Example: "a simile has at least two layers of meaning"
- Example: "the mind functions on many strata simultaneously"
[syn: level, layer, stratum]

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3 definitions retrieved:

The Collaborative International Dictionary of English v.0.48:

Stratum \Stra"tum\, n.; pl. E. Stratums, L. Strata. The latter is more common. [L., from sternere, stratum, to spread; akin to Gr. ? to spread, strew. See Strew, and cf. Consternation, Estrade, Prostrate, Stratus, Street.] 1. (Geol.) A bed of earth or rock of one kind, formed by natural causes, and consisting usually of a series of layers, which form a rock as it lies between beds of other kinds. Also used figuratively. [1913 Webster] 2. A bed or layer artificially made; a course. [1913 Webster]
WordNet (r) 3.0 (2006):

stratum n 1: one of several parallel layers of material arranged one on top of another (such as a layer of tissue or cells in an organism or a layer of sedimentary rock) 2: people having the same social, economic, or educational status; "the working class"; "an emerging professional class" [syn: class, stratum, social class, socio-economic class] 3: an abstract place usually conceived as having depth; "a good actor communicates on several levels"; "a simile has at least two layers of meaning"; "the mind functions on many strata simultaneously" [syn: level, layer, stratum]
Moby Thesaurus II by Grady Ward, 1.0:

83 Moby Thesaurus words for "stratum": Appleton layer, F layer, Heaviside-Kennelly layer, Van Allen belt, band, bed, bedding, belt, blood, bracket, branch, caste, category, chemosphere, clan, class, couche, course, deck, division, estate, floor, gallery, grade, group, grouping, head, heading, ionosphere, isothermal region, kin, label, layer, ledge, level, lower atmosphere, measures, order, outer atmosphere, overlayer, overstory, photosphere, pigeonhole, plane, position, predicament, race, rank, rating, rubric, seam, section, sept, set, shelf, stage, standing, station, status, step, story, strain, stratification, stratosphere, subdivision, subgroup, suborder, substratosphere, substratum, superstratum, table, thickness, tier, title, topsoil, tropopause, troposphere, underlayer, understory, understratum, upper atmosphere, vein, zone