| harbor | 1. A station for rest and entertainment; a place of security and comfort; a refuge; a shelter. "[A grove] fair harbour that them seems." (Spenser) "For harbor at a thousand doors they knocked." (Dryden) 2. Specif., A lodging place; an inn. 3. <astronomy> The mansion of a heavenly body. 4. A portion of a sea, a lake, or other large body of water, either landlocked or artificially protected so as to be a place of safety for vessels in stormy weather; a port or haven. 5. A mixing box materials. Harbor dues, fees paid for the use of a harbor. <zoology> Harbor seal, the common seal. Harbor watch, a watch set when a vessel is in port; an anchor watch. Origin: OE herbor, herberwe, herberge, Icel. Herbergi (cf. OHG. Heriberga), orig, a shelter for soldiers; herr army + bjarga to save, help, defend; akin to AS. Here army, G. Heer, OHG. Heri, Goth. Harjis, and AS. Beorgan to save, shelter, defend, G. Bergen. See Harry, 2d Bury, and cf. Harbinger. Source: Websters Dictionary (01 Mar 1998) |
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| butt log | The log taken from the base of a tree; often slightly irregular. (05 Dec 1998) |
| log | Formally, the number of times ten must be multiplied with itself to equal a certain number. For example: 100,000 is log 5 because it is equal to 10 x 10 x 10 x 10 x 10. Logs are used to measure changes in viral load (see). For example: a reduction in viral load from 100,000 to 1,000 copies/ml is a two log (or 99 percent) reduction. Note that a half log change is not a five-fold difference but a change of 3.16-fold (the square root of ten). (09 Oct 1997) |
| log choker | A length of cable or chain that is wrapped around a log or harvested tree to secure the log to the winch cable of a skidder or to an overhead cable yarding line. (05 Dec 1998) |
| superior dental branches of superior dental plexus | Branches passing from the superior dental plexus to the roots of the teeth of the upper jaw. Synonym: rami dentales superiores plexus dentalis superioris. (05 Mar 2000) |
| inferior dental branches of inferior dental plexus | Branches passing from the inferior dental plexus to the roots of the teeth of the lower jaw. Synonym: rami dentales inferiores plexus dentalis inferioris. (05 Mar 2000) |
| acid etching, dental | Pretreatment of tooth surfaces with etching agents, usually phosphoric acid, to increase the adhesion of various resin systems. (12 Dec 1998) |
| american dental association | Professional society representing the field of dentistry. (12 Dec 1998) |
| anterior superior dental arteries | Origin, infraorbital artery within intraorbital canal; distribution, via anterior alveolar canals to upper incisors and canine teeth, mucus membrane of maxillary sinus. Synonym: arteriae alveolares superiores anteriores, anterior superior dental arteries. (05 Mar 2000) |
| apical dental foramen | The opening at the apex of the root of a tooth that gives passage to the nerve and blood vessels. Synonym: foramen apicis dentis, apical dental foramen, root foramen. (05 Mar 2000) |
| arrested dental caries | Carious lesions that have become inactive and stopped progressing; they may exhibit changes in colour and/or consistency. (05 Mar 2000) |
| biomedical and dental materials | Substances used in biomedicine or dentistry predominantly for their physical, as opposed to chemical, properties. (12 Dec 1998) |
| radiography, dental | Radiographic techniques used in dentistry. (12 Dec 1998) |
| radiography, dental, digital | A rapid, low-dose, digital imaging system using a small intraoral sensor instead of radiographic film, an intensifying screen, and a charge-coupled device. It presents the possibility of reduced patient exposure and minimal distortion, although resolution and latitude are inferior to standard dental radiography. A receiver is placed in the mouth, routing signals to a computer which images the signals on a screen or in print. It includes digitizing from X-ray film or any other detector. (12 Dec 1998) |
| general practice, dental | Nonspecialised dental practice which is concerned with providing primary and continuing dental care. (12 Dec 1998) |