| precision | 1. The quality of being sharply defined or stated; one measure of precision is the number of distinguishable alternatives to a measurement. 2. In statistics, the inverse of the variance of a measurement or estimate. 3. Reproducibility of a quantifiable result; an indication of the random error. (05 Mar 2000) |
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| precision attachment | A frictional or mechanically retained unit used in fixed or removable prosthodontics, consisting of closely fitting male and female parts, an attachment that may be rigid in function or may incorporate a movable stress control unit to reduce the torque on the abutment. Synonym: frictional attachment, internal attachment, key attachment, keyway attachment, parallel attachment, slotted attachment. (05 Mar 2000) |
| precision rest | A rest consisting of closely interlocking parts. (05 Mar 2000) |
| denture precision attachment | A precision device used for attaching a fixed or removable partial denture to the crown of an abutment tooth or a restoration. One type is the intracoronal attachment and the other type is the extracoronal attachment. It consists of a female portion within the coronal portion of the crown of an abutment and a fitted male portion attached to the denture proper. (12 Dec 1998) |
| ultimate | 1. Farthest; most remote in space or time; extreme; last; final. "My harbor, and my ultimate repose." (Milton) "Many actions apt to procure fame are not conductive to this our ultimate happiness." (Addison) 2. Last in a train of progression or consequences; tended toward by all that precedes; arrived at, as the last result; final. "Those ultimate truths and those universal laws of thought which we can not rationally contradict." (Coleridge) 3. Incapable of further analysis; incapable of further division or separation; constituent; elemental; as, an ultimate constituent of matter. <chemistry> Ultimate analysis, organic analysis. See Organic. Ultimate belief. See Belief. <mathematics> Ultimate ratio, the limiting value of a ratio, or that toward which a series tends, and which it does not pass. Synonym: Final, conclusive. See Final. Origin: LL. Ultimatus last, extreme, fr. L. Ultimare to come to an end, fr. Ultimus the farthest, last, superl. From the same source as ulterior. See Ulterior, and cf. Ultimatum. Source: Websters Dictionary (01 Mar 1998) |
| ultimate analysis | A description of a fuel's elemental composition as a percentage of the dry fuel weight. (05 Dec 1998) |
| ultimate principle | One of the chemical elements. (05 Mar 2000) |
| ultimate strength | The maximum stress achieved prior to failure of a component on a single application of the load. (05 Mar 2000) |