stratum
Language: English
Part of speech: noun
Pronunciation: ipa: /ˈstɹɑː.təm/
ipa: /ˈstɹeɪ.təm/
ipa: /ˈstɹeɪ.təm/
ipa: [ˈstɹeɪ.ɾəm]
ipa: /ˈstɹæt.əm/
ipa: [ˈstɹæɾ.əm]
ipa: /ˈstɹaː.təm/
rhymes: -ɑːtəm
rhymes: -eɪtəm
rhymes: -ætəm
Forms: form: stratums
form: strata
Etymology: Borrowed from Latin strātum (“a spread for a bed, coverlet, quilt, blanket; a pillow, bolster; a bed”), neuter singular of strātus, perfect passive participle of sternō (“spread”). Doublet of estrade.
Senses: examples: text: It is built of alternate strata of brick and clay, and the sides correspond to the direction of the meridians and parallels.
ref: 1884, Alfred Ronald Conkling, Appleton's Guide to Mexico, page 43:
text: He describes the operation thus: "The heavy ram employed to impart the finishing strokes, hoisted up with double purchase and snail's pace to the summit of the Piling Engine, and then falling down like a thunderbolt on the head of the devoted timber, driving it perhaps a single half inch in to the stratum below, is well calculated to put to the test the virtue of patience, while it illustrates the old adage of—slow and sure."
ref: 1952 July, W. R. Watson, “Sankey Viaduct and Embankment”, in Railway Magazine, page 487:
synonyms: tier
glosses: One of several parallel horizontal layers of material arranged one on top of another.
examples: text: An illuminating article in a recent issue of the Eastern Region's Civil Engineering News points out that where coal is worked over a reasonably large area, it is not only the whole of the strata above the workings, but also an area beyond which is liable to subside at varying rates after the coal has been removed.
ref: 1961 November, “Talking of Trains: The subsidence problem”, in Trains Illustrated, page 651:
topics: geography
geology
natural-sciences
synonyms: bed
layer
coordinate_terms: seam
glosses: A layer of sedimentary rock having approximately the same composition throughout.
glosses: Any of the regions of the atmosphere, such as the stratosphere, that occur as layers.
topics: biology
natural-sciences
glosses: A layer of tissue.
glosses: A class of society composed of people with similar social, cultural, or economic status.
topics: biology
ecology
natural-sciences
glosses: A layer of vegetation, usually of similar height.
examples: text: Computers that synchronize themselves to the stratum 1 time servers are known as stratum 2 time servers if they allow others to synchronize to them, and so on.
ref: 2006, Roderick W. Smith, Linux Samba Server Administration:
topics: computing
engineering
mathematics
natural-sciences
physical-sciences
sciences
glosses: The level of accuracy of a computer's clock, relative to others on the network.
topics: human-sciences
linguistics
sciences
synonyms: strate
glosses: A historical layer of a language.
Derived terms: adstratum
crystallostratum
epistratum
lateral stratum
mediostratum
midstratum
overstratum
phylostratum
spongiostratum
stratal
stratarchy
stratigraphic
stratigraphy
stratinomy
stratum album intermediale
stratum basale
stratum corneum
stratum germinativum
stratum granulosum
stratum griseum intermediale
stratum lemnisci
stratum spinosum
substratum
superstratum
understratum
Related terms: stratification
stratify
stratosphere