Precision: The ability of a search engine to list results that satisfy the query, usually measured in percentage. (if 20 of the 50 results match the query the precision is 40%) Search spam and the complexity of language challenge the precision of search engines.

 

Related Words

Precision: Precision is the repeatability of a measurement. A measurement can be precise, but not accurate. See Accuracy and Resolution.

Precision Approach Radar (PAR): A ground-radar-based instrument approach providing both horizontal and vertical guidance

Precision Farming: Farmers use global positioning (GPS) technology involving satellites and sensors on the ground and intensive information management tools to understand variations in resource conditions with . . . View Full Definition

Johannson Blocks (Jo Blocks): Common term for the precision gage blocks used and accepted as dimensional standards by machinists, toolmakers and inspectors.

Gib: A tapered strip of metal placed between the bearing surface of two machine parts to ensure a precision fit and provide an adjustment for wear.

Collet: A precision work-holding chuck which centers finished round stock automatically when tightened. Specialized collets are also available in shapes for other than round stock.

Sine Bar: A precision instrument for laying out, setting, testing and otherwise dealing with angular work.

Leadscrew: The long, precision screw located in front of the lathe bed geared to the spindle and used for cutting threads. Also, the table screw on the universal milling machine when geared to the inde . . . View Full Definition

Lap: To lay or place one coat so its edge extends over and covers the edge of a previous coat, causing an increased film thickness.

Parallels: Hardened steel bars accurately ground to size and ordinarily made in pairs in many different sizes to support work in precision setups.