• WordNet 3.6
    • n RA (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"
    • n 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
    • n Ra an intensely radioactive metallic element that occurs in minute amounts in uranium ores
    • ***
Webster's Revised Unabridged Dictionary
  • Interesting fact: Aoccdrnig to a rscheearch procejt at Cmabrigde Uinervtisy, it deosnt mttaer waht oredr the ltteers in a wrod are, the olny iprmoatnt tihng is taht the frist and lsat ltteer be in the rghit pclae. Tihs is bcuseae the huamn mnid deos not raed ervey lteter by istlef, but the wrod as a wlohe
    • n Ra A roe; a deer.
    • ***
Century Dictionary and Cyclopedia
    • n ra An obsolete form of roe.
    • n ra In Egypt, mythol., the sovereign sun-god of the Memphite system, the chief Egyptian personification of the Supreme Being. He was often confounded to some extent with the Theban Amen. In art he was typically represented as a hawk-headed man bearing on his head the solar disk and the royal unæus.
    • n ra A prefix in some words of French origin, ultimately from re- and ad-. See rabate, rabbet, rapport, etc.
    • n ra A terminal moraine.
    • n ra A chemical symbol of radium. Rd is more generally used.
    • ***
Chambers's Twentieth Century Dictionary
    • n Ra the supreme sun-god of the Memphite system of ancient Egyptian mythology.
    • ***


In literature:

Mrs. Ra-hilly, a good deal agitated by the violence of the child's yells, told the sergeant to go for the doctor.
"Lady Bountiful" by George A. Birmingham
RA, Subsector 1-D: No.
"Concordance" by Ann Wilson
Wilecat, fondle de weegee board an' take a ra'r at seein' whut de future holds.
"Lady Luck" by Hugh Wiley
Ra, la is also a diminutive suffix in I E languages.
"The Dakotan Languages, and Their Relations to Other Languages" by Andrew Woods Williamson
Ra-ther light, I'd say.
"The Trail of the Hawk" by Sinclair Lewis
Et eod'm anno reveniebat a t'ra s'c'a et coronabat' cu' sua regina Alianora filia reg' Hispanie apud Westm'.
"A Chronicle of London from 1089 to 1483" by Anonymous
To-day, at the hour when Ammon-Ra came forth from the underworld, I entered the sanctuary.
"Woman on Her Own, False Gods & The Red Robe" by Eugène Brieux
In any case he became a great sun-god, but yielded his position of eminence to Ra.
"Introduction to the History of Religions" by Crawford Howell Toy
Barb'ra, sweet, I come to you!
"Ainslee's, Vol. 15, No. 6, July 1905" by Various
Wa-ka-ra will rejoice at the news.
"The Wild Huntress" by Mayne Reid

In poetry:

Blare of trumpet fills the valley;
Slowly, and majestically,
Swingeth wide, in solemn state,
Lord Amen-Ra's temple-gate.
"Lita of the Nile" by Richard Doddridge Blackmore
Who is this, that so disdaineth
Dome and desert, fear and fate;
While his jewell'd horse he reineth.
At Amen-Ra's temple-gate?
"Lita of the Nile" by Richard Doddridge Blackmore
Oh, how the heart bounds at that simple refrain!
Dear haunts of my childhood, I'm with you again!
Green be your valleys, enriched by the rills,
And long may that carol be sung on your hills!
La ra la la, &c.
"Song Of The Reapers." by George Pope Morris
Then we brought the lances down—then the trumpets blew—
When we went to Kandahar, ridin' two an' two.
Ridin'—ridin'—ridin' two an' two!
All the way to Kandahar,
Ridin' two an' two.
"Ride to Kandahar" by Rudyard Kipling
When thou dost stand in mortal's view,
And breathe thy thoughts of flame,
The conscious soul, conceives them, too,
And breathes and burns the same;--
And when, in fancy, thou dost soar,
'Tis like Niag'ra's thundering roar.
"To Eloquence" by James Avis Bartley
On T'other side & allmost ore ye plain
Proud Sis'ra Jabins captain brings his men,
As thick as locusts on the vintage fly,
As thick as scatterd leaves in Autumn ly,
Bold with success against a nation tryd,
& proud of numbers, & secure in pride.
"Deborah" by Thomas Parnell

In news:

Warming Techniques to Relieve RA Pain.
Obesity Can Reduce Chance of RA Remission .
David Wright and RA Dickey will represent the Mets while Phillies Carlos Ruiz, Cole Hamels and Jonathon Papelbon were nmaed from the Phillies.
Reverend Guitars Pete Anderson Eastsider S. Reverend Sensei RA Guitar.
This year's "May Revise " shows that Governor Brown is dead set on growing government and ra.
Elbow replacement often effective in reducing pain for those with RA.
One of the proven ways for patients to cope with the symptoms of rheumatoid arthritis (RA) is to exercise regularly.
However, many patients with RA do not know which exercises are appropriate or how to achieve exercise goals.
Study Shows RA Drugs Known as DMARDs Aren't Prescribed as Aggressively as They Should.
RA's burden of illness on employers far higher than for average worker.
Study Suggests Smoking Is a Major Cause of RA.
WASHINGTON— Rheumatoid arthritis (RA) is an auto-immune disease that causes swelling of the joints and surrounding tissue.
Left untreated, RA can badly damage joints to the point where they no longer function.
Rheumatoid arthritis (RA) is one of the most common forms of arthritis in the United States, affecting approximately two million Americans.
According to the American College of Rheumatology, women are almost three times as likely to contract RA as men.

In science:

M )−1 ǫαab ǫβ cd(δik δj l − δij δk l )ra,irb,j rc,k rd,l is the inverse of Mαβ = rα · rβ , and ra,i is the ith component of ra .
Two-Body Random Ensembles: From Nuclear Spectra to Random Polynomials
Using the notations just defined, we have ra Let eΓ = ν −1 (Γ) ⊂ eSα .
A Simple Proof that Rational Curves on K3 are Nodal
And for the remaining pair ra (eΓ · Fa )ra = (eΓ · Fb)rb .
A Simple Proof that Rational Curves on K3 are Nodal
Proposition 4.1. A maximal S-chain must contain either ra or rb .
A Simple Proof that Rational Curves on K3 are Nodal
Fix a multidegree ¯r = (ra )a∈A and denote Pa∈A ra by r .
Invariants of mixed representations of quivers II : defining relations and applications