ra

Nouns

  • (n) an intensely radioactive metallic element that occurs in minute amounts in uranium ores atomic number 88, radium,
  • (n) 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 Re,
  • (n) (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
    celestial longitude, right ascension,

Synonyms

atomic number 88 radium Re celestial longitude right ascension

Words of close approximity

Rb R.C. re RF Rg RH RI RN Ro Ru R.V. RV
A B C D E F G H I J K L M N O P Q r S T U V W X Y Z
AA AB AC ad A.D. A.E. Ag AI AK AL AM a.m. AN AR AS at AU Av ax AZ BA BB BC B.C. BD Be Bh Bi Bk bm B.O. BR BS BW by CA cc CD Ce C.E. CF cf. Ci cl cm CO Cr Cs CT Cu CV cx D.A. DA dB D.C. DC DD DE dg dj dl dm DO DP Dr. DS Dy Ea EB EC ED EE e.g. el em en eq ER Es EU eV EW ex fa Fe FL FM FO Fr ft GA GB Gc Gd Ge Gi G.I. gm go
Rabat rabato rabbet rabbet joint rabbet plane Rabbi Rabbi Moses Ben Maimon rabbinate rabbinic rabbinical rabbit rabbit bandicoot rabbit brush rabbit burrow rabbit bush rabbit-eared bandicoot rabbit ears rabbiteye rabbit-eye blueberry rabbiteye blueberry rabbit fever rabbitfish rabbit food rabbit hole rabbit hutch rabbit on rabbit punch rabbit's-foot fern rabbit-sized rabbit test rabbit warren rabbitweed rabbit-weed rabbitwood rabble rabble-rouser rabble-rousing Rabelais Rabelaisian rabid rabidity rabidness rabies Rabi I Rabi II Rabindranath Tagore raccoon raccoon dog raccoon fox race raceabout race car racecard racecourse race driver racehorse race horse raceme race meeting racemic acid racemose race murder race problem racer race riot racerunner race runner racetrack racetrack tout raceway Rachel Rachel Carson Rachel Louise Carson rachet rachet up rachis rachischisis rachitic rachitis Rachmaninoff Rachmaninov Rachycentridae Rachycentron Rachycentron canadum racial racial discrimination racial extermination racial immunity racialism racialist racially racial profiling racial segregation racily Racine raciness racing racing boat racing car racing circuit