rā
[ rah ]
/ rɑ /
noun
the 10th letter of the Arabic alphabet.
Origin of rā
From Arabic
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Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020
British Dictionary definitions for rā (1 of 3)
RA
abbreviation for
rear admiral
astronomy right ascension
(in Britain) Royal Academician or Academy
(in Britain) Royal Artillery
Argentina (international car registration)
Word Origin for RA
(sense 5) from República Argentina
British Dictionary definitions for rā (2 of 3)
Ra1
the chemical symbol for
radium
British Dictionary definitions for rā (3 of 3)
Ra2
Re
/ (rɑː) /
noun
the ancient Egyptian sun god, depicted as a man with a hawk's head surmounted by a solar disc and serpent
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
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Medical definitions for rā
Ra
The symbol for the elementradium
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
Scientific definitions for rā
Ra
The symbol for radium.
The American Heritage® Science Dictionary
Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.