astrometry

[uh-strom-i-tree]

noun

the branch of astronomy that deals with the measurement of the positions and motions of the celestial bodies.

Origin of astrometry

First recorded in 1865–70; astro- + -metry
Also called positional astronomy.
Related formsas·tro·met·ric [as-troh-me-trik] /ˌæs troʊˈmɛ trɪk/, as·tro·met·ri·cal, adjective
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British Dictionary definitions for astrometry

astrometry

noun

the branch of astronomy concerned with the measurement of the position and motion of celestial bodies
Derived Formsastrometric (ˌæstrəˈmɛtrɪk) or astrometrical, adjective
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

astrometry in Science

astrometry

[ə-strŏmĭ-trē]

The scientific measurement of the positions and motions of celestial bodies.
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