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n. pl. to·ri (tôr′ī)
1. Architecture A large convex molding, semicircular in cross section, located at the base of a classical column.
2. Anatomy A bulging or rounded projection or swelling.
3. Botany
a. The receptacle of a flower.
b. A thickened area in the middle of the membrane that connects the pits of tracheids in conifers and certain other gymnosperms.
4. Mathematics A toroid generated by a circle; a surface having the shape of a doughnut. Also called tore2.

[Latin, bulge, knot, torus.]


n, pl -ri (-raɪ)
1. (Architecture) Also called: tore a large convex moulding approximately semicircular in cross section, esp one used on the base of a classical column
2. (Mathematics) geometry a ring-shaped surface generated by rotating a circle about a coplanar line that does not intersect the circle. Area: 4π2Rr; volume: 2π2Rr2, where r is the radius of the circle and R is the distance from the line to the centre of the circle
3. (Botany) botany another name for receptacle2
4. (Anatomy) anatomy a ridge, fold, or similar linear elevation
5. (Celestial Objects) astronomy a dense ring of gas and dust which surrounds a dying star, containing most of the star's ejected gas
[C16: from Latin: a swelling, of obscure origin]


(ˈtɔr əs, ˈtoʊr-)

n., pl. to•ri (ˈtɔr aɪ, ˈtoʊr aɪ)
1. a large convex molding, semicircular in profile, commonly forming the lowest member of the base of a column, directly above the plinth.
a. a doughnut-shaped surface generated by the revolution of a conic, esp. a circle, about an exterior line lying in its plane.
b. the solid enclosed by such a surface.
3. Bot. the receptacle of a flower.
4. Anat. a rounded ridge; a protuberant part.
[1555–65; < Latin: literally, strand, thong, raised ridge]
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.torus - a ring-shaped surface generated by rotating a circle around an axis that does not intersect the circletorus - a ring-shaped surface generated by rotating a circle around an axis that does not intersect the circle
magnetic core, core - (computer science) a tiny ferrite toroid formerly used in a random access memory to store one bit of data; now superseded by semiconductor memories; "each core has three wires passing through it, providing the means to select and detect the contents of each bit"
round shape - a shape that is curved and without sharp angles
2.torus - commonly the lowest molding at the base of a columntorus - commonly the lowest molding at the base of a column
moulding, molding - a decorative strip used for ornamentation or finishing


n (pl -ri o -ruses) torus m; — palatinus torus palatino
References in periodicals archive ?
Another common problem dental assistants face when taking anterior radiographs are torus palatinus and torus mandibularis.
The objective of this study wasp to determine the prevalence of torus palatinus and mandibularis in relation to age and gender among 322 subjects seen at Hill House Kindergarden Students Mashrek International School and our clinic.
Along with Minor salivary gland tumors, Palatal abscess, Nasopalatine duct cyst, torus palatinus, fibromas, hemangiomas, neurofibromas, odontogenic abscesses, myoepithelioma, lymphoma, squamous cell carcinoma and Kaposi's sarcoma should be considered in differential diagnosis for any palatal mass.
Torus palatinus is a wide-based, smooth surfaced, bony protrusion in midline of the hard palate caused by cortical bone growth with a thin, poorly vascularized mucosa lining.
Computed tomography (CT) was performed for confirmation of torus palatinus and to aid surgical planning.
Torus Palatinus A hard bony structure generally located in the posterior midline of the hard palate is known as torus palatinus.
The objective of the study was to determine the frequency, size and shape of torus palatinus (TP) in a teaching hospital in Karachi.
Torus palatinus (TP) is usually located along me- dian palatine suture involving both processi palatine.