| metal interface | In dentistry, a boundary between metal and nonsolvent solder, or between metal and surface oxide. (05 Mar 2000) |
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| crystalline interface | In dentistry, a boundary between adjacent crystals. (05 Mar 2000) |
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| structural interface | In dentistry, a boundary between tooth and restorative material. (05 Mar 2000) |
| dermoepidermal interface | The line of meeting of the dermis and epidermis. (05 Mar 2000) |
| interface | 1. A surface that forms a common boundary of two bodies. 2. The boundary between regions of different radiopacity, acoustic, or magnetic resonance properties; the projection of the interface between tissues of different such properties on an image. (05 Mar 2000) |
| user-computer interface | The portion of an interactive computer program that issues messages to and receives commands from a user. (12 Dec 1998) |
| active metal | <chemistry> Any very reactive metal, such as magnesium or sodium, most are located in the first two columns of the periodic table. (15 Jan 1998) |
| alkali earth metal | See: alkaline earth elements. (05 Mar 2000) |
| alkali metal | <chemistry> Any of the highly reactive metals (such as sodium or potassium) found in the first column of the periodic table, these metals act as bases. (13 Nov 1997) |
| Babbitt metal | An alloy of antimony, copper, and tin; used occasionally in dentistry. (05 Mar 2000) |
| base metal | A metal that is readily oxidised; e.g., iron, copper. (05 Mar 2000) |
| bell metal | A hard alloy or bronze, consisting usually of about three parts of copper to one of tin; used for making bells. Bell metal ore, a sulphide of tin, copper, and iron; the mineral stannite. Source: Websters Dictionary (01 Mar 1998) |
| rare earth metal | Those elements with atomic numbers 57-71 which closely resemble one another chemically and were once difficult to separate from one another. Synonym: rare earth elements. Origin: Lanthanum, first element of the series (05 Mar 2000) |
| central metal ion | <chemistry> The metal ion to which the ligands are attached at the centre of a coordination complex. (09 Oct 1997) |
| void metal composite | A porous metal structure that enables tissue growth within the openings to establish long-term attachment between prosthesis and tissue. (05 Mar 2000) |
| respiratory metal | A metal present in certain respiratory pigments; e.g., iron, manganese, copper, vanadium. (05 Mar 2000) |