| inverted cone bur | A rotary cutting instrument in the shape of a truncated cone with the smaller end attached to the shaft; generally used for entering carious pits or creating undercuts in cavity preparations. (05 Mar 2000) |
|---|
| bur | A rotary cutting instrument, used in dentistry, consisting of a small metal shaft and a head designed in various shapes; used at various rotational velocities for excavating decay, shaping cavity forms, and for reduction of tooth structure. See: burr. (05 Mar 2000) |
|---|---|
| bur drill | See: bur. (05 Mar 2000) |
| bur fish | <zoology> A spinose, plectognath fish of the Allantic coast of the United States (especially. Chilo mycterus geometricus) having the power of distending its body with water or air, so as to resemble a chestnut bur. Synonym: ball fish, balloon fish, and swellfish. Source: Websters Dictionary (01 Mar 1998) |
| round bur | A dental bur with the cutting blades spherically arranged. (05 Mar 2000) |
| cross-cut bur | A bur with blades located at right angles to its long axis. (05 Mar 2000) |
| end-cutting bur | A bur with blades only on its end. (05 Mar 2000) |
| finishing bur | A bur with numerous fine cutting blades placed close together; used to contour metallic restorations. (05 Mar 2000) |
| fissure bur | A cylindrical or tapered rotary cutting tool intended for extending or widening fissures in a tooth, as for general surface reduction of tooth substance. (05 Mar 2000) |
| papilloma, inverted | A mucosal tumour of the urinary bladder or nasal cavity in which proliferating epithelium is invaginated beneath the surface and is more smoothly rounded than in other papillomas. (12 Dec 1998) |
| inverted | 1. Changed to a contrary or counterchanged order; reversed; characterised by inversion. 2. <geology> Situated apparently in reverse order, as strata when folded back upon themselves by upheaval. Inverted arch, an arch placed with crown downward; much used in foundations. Source: Websters Dictionary (01 Mar 1998) |
| inverted follicular keratosis | A solitary benign epithelial tumour of infundibular hair follicle origin occurring on the face, consisting of a lobulated epidermal downgrowth of keratinizing squamous cells with a pattern of eddies or whorls. (05 Mar 2000) |
| inverted image | An image formed by the convergence of the actual rays of light from an object. Synonym: inverted image. (05 Mar 2000) |
| inverted microscope | <instrument, microscopy> A microscope so arranged that the line of sight is directed upward through the objective to the object. (05 Aug 1998) |
| inverted nipple | The turning inward of the nipple. Usually a congenital condition, but, if it occurs where it has not previously existed, it can be a sign of breast cancer. (09 Oct 1997) |
| inverted papilloma | A mucosal tumour of the urinary bladder or nasal cavity in which proliferating epithelium is invaginated beneath the surface and is more smoothly rounded than in other papilloma's. (05 Mar 2000) |