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Look up
-ra ,
Ra ,
ra , or
RA in Wiktionary, the free dictionary.
Ra is the Sun-god of Ancient Egypt.
Ra or RA may also refer to:
A half-step below Re on the
solfège musical scale
Businesses and organizations
Government, military, and political organizations
Other businesses and organizations
Ra (Javanese) (ꦫ), a letter in the Javanese script
Ra (kana) , the Japanese kana ら and ラ
ረ and ራ, Amharic letters that can be read as variations of ra , also related to the Semitic resh
Resh or rāʾ , 10th letter of Arabic alphabet
Ռ or ṙa , the 28th letter in the
Armenian alphabet
र, ड़', ढ़, and र्ह,
Devanagari letters which can be called ra , ṛa or rha
Ԗ, the 23rd letter rha («ра») in the older (1924−1927)
Moksha language Cyrillic script
ர and ற,
Tamil letters articulated as ra , tra or dra depending on the consonant complex
Other uses in science and technology
R
a
{\displaystyle R_{a}}
or Ra, a popular parameter of
roughness , defined as the average of absolute values of deviation from the mean of a surface
Color rendering index (
R
a
{\displaystyle R_{a}}
), a measure of the ability of a light source to reveal the colors of objects faithfully
Radium , symbol Ra, a chemical element
Rain (METAR weather code RA)
Rayleigh number , in physics
Relation algebra , a type of mathematical structure
Right ascension , in astronomy
Risk analysis , in several fields
Resource adequacy , in electrical power grids
Armen Ra , Iranian-born American musician
Aron Ra , American author, podcaster, and atheist activist
Ed Ra (born 1981), American politician
Topics referred to by the same term