Definitions of Ras
You can find definitions of ras below. For other uses please see definition of ras at Merriam Webster
| Word | Meaning |
|---|---|
| ra | 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 |
| radium | an intensely radioactive metallic element that occurs in minute amounts in uranium ores |
| reticular activating system | the network in the reticular formation that serves an alerting or arousal function |
| right ascension | (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 |