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definitions
  • synonyms

astr-

See more synonyms on Thesaurus.com
  1. variant of astro- before a vowel.

astr.

  1. astronomer.
  2. astronomical.
  3. astronomy.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for astr

Historical Examples

  • Cf. Perrine's negative results for Swift's comet in 1899, Astr.

    A Popular History of Astronomy During the Nineteenth Century

    Agnes M. (Agnes Mary) Clerke


British Dictionary definitions for astr

astr.

astron.

abbreviation for
  1. astronomical
  2. astronomy
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