ra

Reading level: hard

Estimated CEFR level: C2 — Proficiency

Estimated from word frequency; not an official CEFR classification.

Definition

noun an intensely radioactive metallic element that occurs in minute amounts in uranium ores
noun 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
noun (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

Lal the ral the ra. — Ulysses, James Joyce
Enter Umb[ra] Frier. Blesse me, heaven! — Bussy D'Ambois and The Revenge of Bussy D'Ambois, George Chapman
Ra!" with a volley of squeaks. — Four Young Explorers; Or, Sight-Seeing in the Tropics, Oliver Optic

radium, atomic number 88

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