torus

Etymology
Borrowed from.

Noun

 * 1)   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).
 * 2)  A topological space which is a product of two circles.
 * 3)  The product of the specified number of circles.
 * 4) A ring-shaped object, especially a large ring-shaped chamber used in physical research.
 * 5)  A large convex molding, typically semicircular in cross section, which commonly projects at the base of a column and above the plinth.
 * 6)  A rounded ridge of bone or muscle, especially one on the occipital bone.
 * 7)  The end of the peduncle or flower stalk to which the floral parts (or in the, the florets of a flower head) are attached.
 * 8)  The thickening of a membrane closing a wood-cell pit (as of gymnosperm tracheids) having the secondary cell wall arched over the pit cavity.
 * 1)  A rounded ridge of bone or muscle, especially one on the occipital bone.
 * 2)  The end of the peduncle or flower stalk to which the floral parts (or in the, the florets of a flower head) are attached.
 * 3)  The thickening of a membrane closing a wood-cell pit (as of gymnosperm tracheids) having the secondary cell wall arched over the pit cavity.
 * 1)  The thickening of a membrane closing a wood-cell pit (as of gymnosperm tracheids) having the secondary cell wall arched over the pit cavity.

Translations

 * Albanian: torusi
 * Arabic:
 * Basque: toru
 * Belarusian: тор
 * Bulgarian: тор
 * Catalan:
 * Chinese:
 * Mandarin:
 * Czech:
 * Danish:
 * Dutch:
 * Esperanto:
 * Estonian: toor
 * Finnish:
 * French:
 * Galician:
 * German:
 * Greek:
 * Hebrew: טורוס
 * Hungarian:
 * Ido:
 * Italian:
 * Japanese:
 * Korean: 원환면
 * Latvian: tors
 * Lithuanian: toras
 * Macedonian: тор
 * Maori: tarawhiti
 * Norwegian:
 * Bokmål: torus
 * Nynorsk: torus
 * Polish:, armila
 * Portuguese:
 * Romanian:
 * Russian:
 * Serbo-Croatian:
 * Cyrillic: торус
 * Roman:
 * Slovak: torus
 * Slovene: torus
 * Spanish:
 * Swedish:
 * Turkish:
 * Ukrainian:
 * Vietnamese: khối xuyến


 * Chinese:
 * Mandarin:
 * Esperanto:
 * Finnish:
 * French:
 * Japanese:
 * Polish:
 * Russian:
 * Spanish:


 * Finnish:
 * Polish:


 * Catalan: ,
 * Finnish:, vannikka
 * French:
 * German:
 * Italian:


 * Chinese:
 * Mandarin:
 * Finnish:


 * Greek:

Etymology
From.

Noun

 * 1)  torus

Etymology 1
From.

Noun

 * 1)  torus

Etymology
Of origin.

De Vaan proposes a tentative derivation from a, from. This is formally and semantically solid, though there is little linguistic evidence to support it.

An older theory by Leumann derived the word from, itself from , but the connection between the two Latin words is semantically dubious (one would expect to be derived from a verb meaning "to turn" or "to knot" rather than "to spread").

Noun

 * 1) round, swelling, bulging place; elevation, protuberance
 * 2) bulge, knot
 * 3)  muscular or fleshly part, muscle, brawn of an animal bodies
 * 4)  bulge, thickness of trees
 * 5) raised ornament, knot on a garland
 * 6)  bolster, cushion; bed, couch, sofa
 * 7) marriage bed
 * 8)  marriage (sometimes any sexual relationship)
 * 9) embankment, elevation of earth
 * 10)  large round molding at the base of a column
 * 1) embankment, elevation of earth
 * 2)  large round molding at the base of a column

Descendants

 * (borrowed)
 * (borrowed)
 * (borrowed)
 * (borrowed)
 * (borrowed)
 * (borrowed)

Noun

 * 1)  ; 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