Definition of Ra in English :
Define Ra in English
Ra meaning in English
Meaning of Ra in English
Pronunciation of Ra in English
Ra pronunciation in English
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Ra
see synonyms of raNoun
1. atomic number 88, ra, radium
an intensely radioactive metallic element that occurs in minute amounts in uranium ores
2. ra, re
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
3. celestial longitude, ra, right ascension
(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
Example Sentences:'one hour of right ascension equals fifteen degrees'
WordNet Lexical Database for English. Princeton University. 2010.
Ra
see synonyms of raCollins English Dictionary. Copyright © HarperCollins Publishers
Ra
see synonyms of raWebster’s New World College Dictionary, 4th Edition. Copyright © 2010 by Houghton Mifflin Harcourt. All rights reserved.
Ra
see synonyms of raMythology
The American Heritage ® Dictionary of the English Language, Fifth Edition copyright ©2018 by Houghton Mifflin Harcourt Publishing Company. All rights reserved.