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单词 rā
释义

WordReference Random House Unabridged Dictionary of American English © 2024
rā  (rä),USA pronunciation n. 
  1. the 10th letter of the Arabic alphabet.
  • Arabic

Ra  (rä),USA pronunciation n. [Egyptian Religion.]
  1. Chemistry, Eastern Religionsa sun god of Heliopolis, a universal creator worshiped throughout Egypt (typically represented as a hawk-headed man bearing on his head the solar disk and the uraeus).
Also, Re. 
RA, 
  1. Militaryregular army.

Ra, [Symbol, Chem.]
  1. radium.

R.A., 
    1. Militaryrear admiral.
    2. Astronomyright ascension.
    3. royal academician.
    4. Royal Academy.

Collins Concise English Dictionary © HarperCollins Publishers::
RA abbreviation for
  1. rear admiral
  2. right ascension
  3. (in Britain) Royal Academician or Academy
  4. (in Britain) Royal Artillery
Etymology: (sense 5) from República Argentina
Collins Concise English Dictionary © HarperCollins Publishers::
Ra the chemical symbol for
  1. radium
Ra /rɑː/, Re n
  1. the ancient Egyptian sun god, depicted as a man with a hawk's head surmounted by a solar disc and serpent
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更新时间：2025/2/23 12:34:42