astrometry

[ uh-strom-i-tree ]
/ əˈstrɒm ɪ tri /

noun

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

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Also called positional astronomy.

Origin of astrometry

First recorded in 1865–70; astro- + -metry

OTHER WORDS FROM astrometry

as·tro·met·ric [as-troh-me-trik] /ˌæs troʊˈmɛ trɪk/, as·tro·met·ri·cal, adjective
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Example sentences from the Web for astrometry

British Dictionary definitions for astrometry

astrometry
/ (əˈstrɒmɪtrɪ) /

noun

the branch of astronomy concerned with the measurement of the position and motion of celestial bodies

Derived forms of astrometry

astrometric (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

Scientific definitions for astrometry

astrometry
[ ə-strŏmĭ-trē ]

The scientific measurement of the positions and motions of celestial bodies.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.