torus

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See also: Torus

English[edit]

A geometrical torus

Etymology[edit]

Borrowed from Latin torus (a round, swelling, elevation, protuberance).

Pronunciation[edit]

Noun[edit]

torus (plural tori or toruses)

  1. (geometry) The standard representation of such a space in 3-dimensional Euclidean space: a surface or solid formed by rotating a closed curve, especially a circle, about a line which lies in the same plane but does not intersect it (e.g. like a ring doughnut).
    Hypernym: toroid
    1. (topology) A topological space which is a product of two circles.
      A 4-variable Karnaugh map can be thought of, topologically, as being a torus.
      Hyponym: solid torus
      1. (topology, in combination, n-torus, 4-torus, etc.) The product of the specified number of circles.
    2. A ring-shaped object, especially a large ring-shaped chamber used in physical research.
  2. (architecture) A large convex molding, typically semicircular in cross section, which commonly projects at the base of a column and above the plinth.
  3. (anatomy) A rounded ridge of bone or muscle, especially one on the occipital bone.
  4. (botany) The end of the peduncle or flower stalk to which the floral parts (or in the Asteraceae, the florets of a flower head) are attached.
    Synonyms: receptacle, thalamus
  5. (botany) The thickening of a membrane closing a wood-cell pit (as of gymnosperm tracheids) having the secondary cell wall arched over the pit cavity.

Derived terms[edit]

Related terms[edit]

Translations[edit]

The translations below need to be checked and inserted above into the appropriate translation tables, removing any numbers. Numbers do not necessarily match those in definitions. See instructions at Wiktionary:Entry layout § Translations.

See also[edit]

References[edit]

Anagrams[edit]


Dutch[edit]

Dutch Wikipedia has an article on:
Wikipedia nl

Etymology[edit]

From Latin torus.

Pronunciation[edit]

Hyphenation: to‧rus

Noun[edit]

torus m (plural torussen, diminutive torusje n)

  1. (geometry) torus

Finnish[edit]

Etymology 1[edit]

From Latin torus.

Pronunciation[edit]

  • IPA(key): /ˈtorus/, [ˈt̪o̞rus̠]
  • IPA(key): /ˈtoːrus/, [ˈt̪o̞ːrus̠] (proscribed)
  • Rhymes: -orus
  • Syllabification: to‧rus

Noun[edit]

torus

  1. (geometry, topology) torus
Declension[edit]
Inflection of torus (Kotus type 39/vastaus, no gradation)
nominative torus torukset
genitive toruksen torusten
toruksien
partitive torusta toruksia
illative torukseen toruksiin
singular plural
nominative torus torukset
accusative nom. torus torukset
gen. toruksen
genitive toruksen torusten
toruksien
partitive torusta toruksia
inessive toruksessa toruksissa
elative toruksesta toruksista
illative torukseen toruksiin
adessive toruksella toruksilla
ablative torukselta toruksilta
allative torukselle toruksille
essive toruksena toruksina
translative torukseksi toruksiksi
instructive toruksin
abessive toruksetta toruksitta
comitative toruksineen
Possessive forms of torus (type vastaus)
possessor singular plural
1st person torukseni toruksemme
2nd person toruksesi toruksenne
3rd person toruksensa

Etymology 2[edit]

Pronunciation[edit]

  • IPA(key): /ˈtorus/, [ˈt̪o̞rus̠]
  • Rhymes: -orus
  • Syllabification: to‧rus

Verb[edit]

torus

  1. Second-person singular imperative present form of torua + the suffix -s.

Anagrams[edit]


Latin[edit]

Alternative forms[edit]

Etymology[edit]

From Proto-Indo-European *sterh₃-.

(This etymology is missing or incomplete. Please add to it, or discuss it at the Etymology scriptorium.)

Pronunciation[edit]

Noun[edit]

torus m (genitive torī); second declension

  1. round, swelling, bulging place; elevation, protuberance
  2. bulge, knot
  3. (zootomy, usually poetic) muscular or fleshly part, muscle, brawn of an animal bodies
    1. (transferred sense, botany) bulge, thickness of trees
  4. raised ornament, knot on a garland
  5. (usually poetic) bolster, cushion; bed, couch, sofa
    1. marriage bed
    2. (transferred sense, figuratively) marriage (sometimes any sexual relationship)
      Synonym: thalamus
  6. embankment, elevation of earth
  7. (architecture) large round molding at the base of a column
Quote-alpha.png This entry needs quotations to illustrate usage. If you come across any interesting, durably archived quotes then please add them!

Inflection[edit]

Second-declension noun.

Case Singular Plural
Nominative torus torī
Genitive torī torōrum
Dative torō torīs
Accusative torum torōs
Ablative torō torīs
Vocative tore torī

Derived terms[edit]

Descendants[edit]

References[edit]

  • torus in Charlton T. Lewis and Charles Short (1879) A Latin Dictionary, Oxford: Clarendon Press
  • torus in Charlton T. Lewis (1891) An Elementary Latin Dictionary, New York: Harper & Brothers
  • torus in Gaffiot, Félix (1934) Dictionnaire illustré Latin-Français, Hachette
  • torus in The Perseus Project (1999) Perseus Encyclopedia[1]
  • torus in Harry Thurston Peck, editor (1898) Harper's Dictionary of Classical Antiquities, New York: Harper & Brothers
  • torus in William Smith et al., editor (1890) A Dictionary of Greek and Roman Antiquities, London: William Wayte. G. E. Marindin

Anagrams[edit]


Swedish[edit]

Noun[edit]

torus c

  1. (geometry, topology) torus; a shape consisting of a ring, or an object of the same topology residing in a space of higher dimension; especially considered as a Cartesian product of two circles in a four-dimensional space

Declension[edit]

Declension of torus 
Singular Plural
Indefinite Definite Indefinite Definite
Nominative torus torusen torusar torusarna
Genitive torus torusens torusars torusarnas

Related terms[edit]

Anagrams[edit]