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Webster 1913 Edition


Stratum

Stra′tum

,
Noun.
;
pl. E.
Stratums
(#)
, L.
Strata
(#)
. The latter is more common.
[L., from
sternere
,
stratum
, to spread; akin to Gr. [GREEK] 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.
2.
A bed or layer artificially made; a course.

Webster 1828 Edition


Stratum

STRATUM

,
Noun.
plu.
stratums or strata. The latter is most common. [L., to spread or lay.]
1.
In geology and mineralogy, a layer; any species of earth, sand, coal and the like, arranged in a flat form, distinct from the adjacent matter. The thicker strata are called beds; and these beds are sometimes stratified.
2.
A bed or layer artificially made.

Definition 2022


stratum

stratum

English

Noun

stratum (plural stratums or strata)

  1. One of several parallel horizontal layers of material arranged one on top of another.
  2. (geology) A layer of sedimentary rock having approximately the same composition throughout.
  3. Any of the regions of the atmosphere, such as the stratosphere, that occur as layers.
  4. (biology) A layer of tissue.
  5. A class of society composed of people with similar social, cultural, or economic status.
  6. (ecology) A layer of vegetation, usually of similar height.

Synonyms

  • (layer of material arranged one on top of another): tier
  • (layer of sedimentary rock): bed, layer

Related terms

Translations

External links

  • stratum on Wikipedia.Wikipedia
  • stratum in Webster’s Revised Unabridged Dictionary, G. & C. Merriam, 1913
  • stratum in The Century Dictionary, The Century Co., New York, 1911

Latin

Etymology

From strātus, perfect passive participle of sternō (spread).

Pronunciation

Noun

strātum n (genitive strātī); second declension

  1. a bed-covering, coverlet, quilt, blanket
  2. a pillow, bolster
  3. a bed, couch
  4. a horse-blanket, saddle-cloth
  5. a pavement
  6. accusative singular of strātum
  7. vocative singular of strātum

Inflection

Second declension.

Case Singular Plural
nominative strātum strāta
genitive strātī strātōrum
dative strātō strātīs
accusative strātum strāta
ablative strātō strātīs
vocative strātum strāta

Descendants

Verb

strātum

  1. supine of sternō

References