RA
abbr.
1. regular army
2. residence assistant
3. right ascension
Ra 1
(rä) also Re (rā)n. Mythology
The ancient Egyptian sun god, the supreme deity represented as a man with the head of a falcon crowned with a solar disk and uraeus.
[Egyptian r', sun, Ra.]
Ra 2
The symbol for radium.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Ra
the chemical symbol for
(Elements & Compounds) radium
Ra
(rɑː) orRe
n
(Non-European Myth & Legend) the ancient Egyptian sun god, depicted as a man with a hawk's head surmounted by a solar disc and serpent
RA
abbreviation for
1. (Nautical Terms) rear admiral
2. (Astronomy) astronomy right ascension
3. (Art Terms) (in Britain) Royal Academician or Academy
4. (Military) (in Britain) Royal Artillery
5. (Automotive Engineering) Argentina (international car registration)
[(sense 5) from República Argentina]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
Ra
(rɑ)also Re
n.
a sun god of Heliopolis, worshipped throughout ancient Egypt and typically represented as a hawk-headed man crowned with a solar disk and uraeus.
RA
regular army.
Ra
Chem. Symbol.
radium.
R.A.
1. right ascension.
2. royal academician.
3. Royal Academy.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
Ra
The symbol for radium.
The American Heritage® Student Science Dictionary, Second Edition. Copyright © 2014 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
| Noun | 1. |  Ra - an intensely radioactive metallic element that occurs in minute amounts in uranium oresmetal, metallic element - any of several chemical elements that are usually shiny solids that conduct heat or electricity and can be formed into sheets etc. uranium ore - any ore from which uranium can be extracted |
| 2. | Ra - ancient Egyptian sun god with the head of a hawk; a universal creator; he merged with the god Amen as Amen-Ra to become the king of the gods antiquity - the historic period preceding the Middle Ages in Europe | |
| 3. | RA - (astronomy) the equatorial coordinate specifying the angle, measured eastward along the celestial equator, from the vernal equinox to the intersection of the hour circle that passes through an object in the sky; usually expressed in hours and minutes and seconds; used with declination to specify positions on the celestial sphere; "one hour of right ascension equals fifteen degrees" astronomy, uranology - the branch of physics that studies celestial bodies and the universe as a whole angular distance - the angular separation between two objects as perceived by an observer; "he recorded angular distances between the stars" |
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
Translations
RA
N ABBR1. (Brit) =Royal Academy of Arts → Real Academia f de Bellas Artes
2. (Brit) =Royal Academician → miembro mf de la Real Academia de Bellas Artes
3. (Mil) =Royal Artillery
4. =Rear Admiral
RA - ROYAL ACADEMY OF ARTS
La Royal Academy of Arts o RA es la más famosa de las fundaciones de arte británicas. Con sede en Londres, la Royal Academy presenta exposiciones de artistas modernos y de todas las épocas, y también imparte algunas clases a futuros artistas. Cada verano tiene lugar la Summer Exhibition, que es la mayor exposición abierta de arte contemporáneo en el mundo. Cualquier artista puede enviar su trabajo y la selección final de obras concentra una amplia gama de estilos, tanto de artistas conocidos como de principiantes. Los artistas miembros de la Royal Academy of Arts pueden escribir las iniciales RA después de sus nombres, como si de un título académico se tratase.
Collins Spanish Dictionary - Complete and Unabridged 8th Edition 2005 © William Collins Sons & Co. Ltd. 1971, 1988 © HarperCollins Publishers 1992, 1993, 1996, 1997, 2000, 2003, 2005