Definify.com
Webster 1913 Edition
Torus
‖
To′rus
(tō′rŭs)
, Noun.
pl.
Tori
(tō′rī)
. [L., a round, swelling, or bulging place, an elevation. Cf. 3d
Tore
.] 1.
(Arch.)
A large molding used in the bases of columns. Its profile is semicircular. See Illust. of
Molding.
Brande & C.
2.
(Zool.)
One of the ventral parapodia of tubicolous annelids. It usually has the form of an oblong thickening or elevation of the integument with rows of uncini or hooks along the center. See Illust. under
Tubicolae
. 3.
(Bot.)
The receptacle, or part of the flower on which the carpels stand.
4.
(Geom.)
(a)
The surface described by the circumference of a circle revolving about a straight line in its own plane.
(b)
The solid inclosed by such a surface; – sometimes called an
anchor ring
.
Syn. –3d Tore{2}.
Webster 1828 Edition
Torus
TO'RUS
,Noun.
Definition 2024
Torus
torus
torus
See also: Torus
English
A geometrical torus
Noun
torus (plural tori or toruses)
- (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.
- (mathematics) The standard representation of such a space in 3-dimensional Euclidean space: a shape consisting of a ring with a circular cross-section: the shape of an inner tube or hollow doughnut.
- (topology, in combination, n-torus, 4-torus, etc.) The product of the specified number of circles.
- (architecture) A molding which projects at the base of a column and above the plinth.
- (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; see receptacle.
Derived terms
Translations
topological space
shape in 3-dimensional Euclidean space
end of a stalk
See also
Anagrams
Finnish
Verb
torus
Anagrams
Latin
Etymology
From Proto-Indo-European *sterh₃-.
Alternative forms
Pronunciation
- (Classical) IPA(key): /ˈto.rus/
Noun
torus m (genitive torī); second declension
- a swelling, protuberance, bulge, knot
- the muscular part of an animal
- raised ornament on a garland
- bolster, cushion
- (by extension) bed, couch
- embankment, an elevation of earth
- (architecture) large round molding at the base of a column
Inflection
Second declension.
| Case | Singular | Plural |
|---|---|---|
| nominative | torus | torī |
| genitive | torī | torōrum |
| dative | torō | torīs |
| accusative | torum | torōs |
| ablative | torō | torīs |
| vocative | tore | torī |
Derived terms
Descendants
References
- 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
- Félix Gaffiot (1934), “torus”, in Dictionnaire Illustré Latin-Français, Paris: Hachette.
- torus in The Perseus Project (1999) Perseus Encyclopedia
- 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
Swedish
Noun
torus c
- (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
| Inflection of torus | ||||
|---|---|---|---|---|
| Singular | Plural | |||
| Indefinite | Definite | Indefinite | Definite | |
| Nominative | torus | torusen | torusar | torusarna |
| Genitive | torus | torusens | torusars | torusarnas |
Related terms
- flat torus