[ uh-strom-i-tree ]
/ əˈstrɒm ɪ tri /
the branch of astronomy that deals with the measurement of the positions and motions of the celestial bodies.
Also called positional astronomy.
Related formsas·tro·met·ric [as-troh-me-trik] /ˌæs troʊˈmɛ trɪk/, as·tro·met·ri·cal, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Examples from the Web for astrometry
The subject of Astrophysics does not admit of so definite a subdivision as that of Astrometry.
British Dictionary definitions for astrometry
/ (əˈstrɒmɪtrɪ) /
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
Science definitions for astrometry
[ ə-strŏm′ĭ-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.