stratus

Learned borrowing from Latin strātus (“spread or stretched out”). Coined by the British chemist and amateur meteorologist Luke Howard (1772–1864): see the 1803 quotation.^[1] Doublet of strath.

• (Received Pronunciation) IPA^(key): /ˈstɹeɪtəs/, /ˈstɹæ-/, /ˈstɹɑː-/

• Audio (Southern England); /ˈstɹɑːtəs/:

  (file)

• (General American) IPA^(key): /ˈstɹeɪtəs/, /ˈstɹæ-/, /ˈstɹɑ-/, [-ɾəs]
• Rhymes: -eɪtəs, -ætəs, -ɑːtəs
• Hyphenation: stra‧tus

stratus (usually uncountable, plural strati)

1. (meteorology) A principal, low-level cloud type in the form of a gray layer with a rather uniform base, usually not associated with precipitation, and capable of producing corona phenomena and a weak, uniform luminance.

   Synonym: (abbreviation) St

   • 1803 July, Luke Howard, “XVIII. On the Modifications of Clouds, and on the Principles of Their Production, Suspension, and Destruction; being the Substance of an Essay Read before the Askesian Society in the Session 1802–3.”, in Alexander Tilloch, editor, The Philosophical Magazine and Journal: Comprehending the Various Branches of Science, the Liberal and Fine Arts, Agriculture, Manufactures, and Commerce, volume XVI, number 62, London: […] [Richard Taylor] for Alexander Tilloch; and sold by Messrs. Richardson, […], →ISSN, →OCLC, pages 99 and 357:

     [page 99] Stratus. […] A widely extended, continuous, horizontal sheet, increasing from below. […] [page 357] When a stratus covers the ground at sun-rise, however, we often see it collect into cumuli upon the evaporation of that part of it which is immediately contiguous to the earth: […]

• cirrostratus
• cumulostratus
• stratus fractus

Borrowed from Latin stratus.

• IPA^(key): /ˈstrɑtus/, [ˈs̠trɑ̝t̪us̠]
• Rhymes: -ɑtus
• Syllabification^(key): stra‧tus
• Hyphenation^(key): stra‧tus

stratus

1. synonym of sumupilvi (“stratus (cloud)”)

• (Classical Latin) IPA^(key): [ˈstraː.tʊs]
• (modern Italianate Ecclesiastical) IPA^(key): [ˈstraː.tus]

Perfect passive participle of sternō (“spread out”). Diachronically, from Proto-Italic *strātos, from Proto-Indo-European *str̥h₃tós. Cognate with Proto-Celtic *stratos (“valley”), earlier *“spread-out land”, Ancient Greek στρωτός (strōtós, “bestrewn, spread, laid out; smooth”), στρατός (stratós, “army, war band”), and Sanskrit स्तृत (stṛtá, “bestrewn, spread (out); extended, spacious; covered; overthrown”).^[1]

strātus (feminine strāta, neuter strātum); first/second-declension participle

1. spread, stretched out, spread out, having been spread out
2. (rare) calmed, stilled, moderated, having been calmed
3. covered, spread with, scattered with, bestrewn with, having been covered (with)
   1. (of a road, path) paved, covered, having been paved
4. stretched on the ground, cast down, struck down, prostrated, having been struck down
   1. (by extension) knocked to the ground, demolished, razed, levelled, flattened, having been razed

First/second-declension adjective.

From sternō + -tus (action noun suffix).

strātus m (genitive strātūs); fourth declension

1. (abstract) the act of spreading, strewing
2. (concrete) a bed-covering, coverlet, quilt, blanket

   Synonyms: strātum; strāgulum

Fourth-declension noun.

strātus

1. vocative singular of strātus

strātūs

1. inflection of strātus:
   1. nominative/accusative/vocative plural
   2. genitive singular

• “strātus, -a, -um”, in Charlton T. Lewis and Charles Short (1879), A Latin Dictionary, Oxford: Clarendon Press
• “strātus, -ī”, in Charlton T. Lewis and Charles Short (1879), A Latin Dictionary, Oxford: Clarendon Press
• “strātus, -ūs”, in Charlton T. Lewis and Charles Short (1879), A Latin Dictionary, Oxford: Clarendon Press
• “stratus”, in Charlton T. Lewis (1891), An Elementary Latin Dictionary, New York: Harper & Brothers
• "stratus", in Charles du Fresne du Cange, Glossarium Mediæ et Infimæ Latinitatis (augmented edition with additions by D. P. Carpenterius, Adelungius and others, edited by Léopold Favre, 1883–1887)
• “stratus”, in Gaffiot, Félix (1934), Dictionnaire illustré latin-français, Hachette.
• Carl Meißner; Henry William Auden (1894), Latin Phrase-Book‎^[1], London: Macmillan and Co.
  • (ambiguous) a street, a made road: via strata
    
  • (ambiguous) all have perished by the sword: omnia strata sunt ferro
    
• “stratus”, in Harry Thurston Peck, editor (1898), Harper’s Dictionary of Classical Antiquities, New York: Harper & Brothers
• “stratus”, in William Smith, editor (1854, 1857), A Dictionary of Greek and Roman Geography, volume 1 & 2, London: Walton and Maberly

Borrowed from French stratus, from Latin stratus.

stratus m (uncountable)

1. stratus