日本語WordNet
an intensely radioactive metallic element that occurs in minute amounts in uranium ores
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
(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"
AIによる解説
An abbreviation with multiple meanings: the chemical symbol for radium, the musical note 're,' or Right Ascension in astronomy. Context determines the meaning.
ライセンス: KeyLang Original
The astronomer calculated the star's RA coordinates.
天文学者はその星の赤経座標を計算した。
Ra was once used in medical treatments before its dangers were understood.
Raは危険性が理解される前は医療治療に使われていた。
Pronunciation data from ipa-dict (MIT License) based on cmudict-ipa by @lingz