base line


base line
noun
Etymology: base (I)
: a main line taken as or representing a base: as
a. : base 6b; specifically : a line extending east and west from a chosen reference point on a principal meridian and forming with the meridian a pair of coordinate axes for locating township and section corners — used in United States public-land surveying
b. : the line joining the base piece and the base point in artillery fire
c. : the lowest horizontal line in a profile drawing of a ship used as a base for vertical measurements
d. of a perspective drawing : the line formed by the intersection of the ground plane and the picture plane
e. : the area within which a baseball player must keep when running between bases
f. : the back line at each end of a tennis court — see tennis illustration
g. : the lower horizontal guideline for aligning capitals in freehand lettering
h. : a known quantity used as a control for further experimentation

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base line, or base|line «BAYS LYN», noun.
1. a line used as a base, from which operations are carried on, or on which they depend or rest.
2. a) Baseball. the unmarked lane or path between one base and the next. A player must keep to it while remaining between bases. b) Tennis. the line at either end of the court parallel to the net: »

He began to net his returns and overdrive the base line (Time).

3. Surveying. any precisely determined line forming a side of a triangle, so that when the adjacent angles are measured, the relative position of the third vertex is determined.

Useful english dictionary. 2012.

Look at other dictionaries:

  • Base line — Base Base, n. [F. base, L. basis, fr. Gr. ba sis a stepping, step, a base, pedestal, fr. bai nein to go, step, akin to E. come. Cf. {Basis}, and see {Come}.] 1. The bottom of anything, considered as its support, or that on which something rests… …   The Collaborative International Dictionary of English

  • base|line — base line, or base|line «BAYS LYN», noun. 1. a line used as a base, from which operations are carried on, or on which they depend or rest. 2. a) Baseball. the unmarked lane or path between one base and the next. A player must keep to it while… …   Useful english dictionary

  • 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 — Survey line used in the government survey to establish township lines. Horizontal elevation line used as a centerline in a highway survey. Dictionary from West s Encyclopedia of American Law. 2005. base line …   Law dictionary

  • base-line — ● base line, base lines nom féminin (mot anglais) Slogan publicitaire placé en bas d une affiche ou d une annonce de presse, ou à la fin d un spot de publicité …   Encyclopédie Universelle

  • base(line) — pagrindinė linija statusas T sritis chemija apibrėžtis Grafinės priklausomybės linija, kai sistemoje nevyksta pokyčiai. atitikmenys: angl. base(line); datum(line) rus. базовая линия …   Chemijos terminų aiškinamasis žodynas

  • 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 — n. starting line; (Printing) imaginary line on which the bottoms of letters sit (excluding the tails on g, y, p, q, and j); line which marks each end of the court (Tennis); area in which a runner runs from base to base on a baseball field… …   English contemporary dictionary

  • 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