baseline/base line

i. The shorter arc of the great circle joining the master and slave station of a pair of radio-transmitting stations.
ii. A yardstick for comparing an existing and a new system or aircraft. In this case, the former serves as a baseline.

Aviation dictionary. 2014.

Look at other dictionaries:

  • base line — [bās′līn΄] 1. a) a line serving as a base b) any starting or reference point, figure, amount, level, etc. with which others can be measured or compared c) Surveying a horizontal line measured with special accuracy to provide a base for survey by… …   Universalium

  • base line — [bās′līn΄] 1. a) a line serving as a base b) any starting or reference point, figure, amount, level, etc. with which others can be measured or compared c) Surveying a horizontal line measured with special accuracy to provide a base for survey by… …   English World dictionary

  • base line — bazinė linija statusas T sritis informatika apibrėžtis Įsivaizduojama linija spausdintame arba ekrane rodomame tekste, į kurią remiasi rašmenų pagrindai. Iliustraciją žr. priede. Žemiau šios linijos patenka raidžių nosinės ir kitos išsikišančios… …   Enciklopedinis kompiuterijos žodynas

  • base·line — /ˈbeısˌlaın/ noun, pl lines [count] 1 technical : information that is used as a starting point by which to compare other information The experiment is meant only to provide a baseline for other studies. often used before another noun baseline… …   Useful english dictionary

  • base line — 1. a line from the infraorbital ridge to the external acoustic meatus and the middle line of the occiput. 2. baseline …   Medical dictionary

  • base-line — see baseline …   English dictionary

  • Borden Base Line — The Borden Base Line is a historic survey line (7.42 miles, convert|39009.73|ft|m long) running north/south through Hatfield and South Deerfield, Massachusetts. It was completed in 1831, and is now on the List of historic civil engineering… …   Wikipedia

  • Long base line sonar — Long Base Line, commonly referred to as LBL, is a method of acoustic positioning commonly used in deep water (water depth of greater than 3000 feet). A typical LBL positioning system consists of a transceiver and several beacons arranged into a… …   Wikipedia

  • Baseline Road (Ottawa) — Baseline Road (Ottawa Road #16) is a road in Ottawa, Ontario, Canada.Baseline runs from Richmond Road (almost directly over Highway 416) east in a straight line until it ends at the Heron Road Bridge over the Rideau River and Rideau Canal when it …   Wikipedia

  • baseline — also base line, 1750, originally in surveying, from BASE (Cf. base) (n.) + LINE (Cf. line) (n.). Baseline estimate in use by 1983. Baseball diamond sense is from 1867 …   Etymology dictionary

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