6 definitions found

From WordNet (r) 2.0 [wn]:

Ra

noun

1: an intensely radioactive metallic element that occurs in minute amounts in uranium ores [syn: {radium}, {atomic number 88}]

2: (astronomy) the angular distance eastward along the celestial equator from the vernal equinox to the intersection of the hour circle that passes through the body; expressed in hours and minutes and second; used with declination to specify positions on the celestial sphere; "one hour of right ascension equals fifteen degrees" [syn: {right ascension}, {celestial longitude}]

3: ancient hawk-headed Egyptian sun god; a universal creator [syn: {Re}]

From The Collaborative International Dictionary of English v.0.44 [gcide]:

Ra \Ra\ (r[aum]), noun A roe; a deer. [Obs.] --Chaucer.

From The Collaborative International Dictionary of English v.0.44 [gcide]:

Ra- \Ra-\ A prefix, from the Latin re and ad combined, coming to us through the French and Italian. See {Re-}, and {Ad-}.

From Moby Thesaurus II by Grady Ward, 1.0 [moby-thes]:

24 Moby Thesaurus words for "Ra": Amen-Ra, Anubis, Apollo, Bast, Helios, Horus, Hyperion, Isis, Khem, Min, Neph, Nephthys, Nut, Osiris, Phoebus, Phoebus Apollo, Ptah, Savitar, Set, Shamash, Sol, Surya, Thoth, Titan

From Virtual Entity of Relevant Acronyms (Version 1.9, June 2002) [vera]:

RA Registration Authority (PKI, ITU, cryptography)

From Virtual Entity of Relevant Acronyms (Version 1.9, June 2002) [vera]:

RA Remote Access (BBS)
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