Dictionary
Thesaurus
Encyclopedia
Translator
Web
Related Searches
Nearby Words

ras

 - 10 dictionary results

rā

  [rah]
Use ras in a Sentence
–noun
the 10th letter of the Arabic alphabet.
Origin:
< Ar

Ra

  [rah]
–noun Egyptian Religion.
a sun god of Heliopolis, a universal creator worshiped throughout Egypt (typically represented as a hawk-headed man bearing on his head the solar disk and the uraeus).
Also, Re.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
Cite This Source Link To ras
Medical Dictionary

Main Entry: RA
Function: abbreviation
rheumatoid arthritis

Main Entry: ras
Pronunciation: 'ras
Function: noun
often attrib Etymology: rat sarcoma
: any of a family of genes that undergomutation to oncogenes and especially to some commonly linked to human cancers (as of the colon, lung, and pancreas) <ras oncogenes> <ras proteins>
Merriam-Webster's Medical Dictionary, © 2002 Merriam-Webster, Inc.
Cite This Source
Medical Dictionary

Ra
The symbol for the element radium.

RAS abbr.
reticular activating system

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
Cite This Source
Science Dictionary
radium   (rā'dē-əm)  Pronunciation Key 
Symbol Ra
A rare, bright-white, highly radioactive element of the alkaline-earth group. It occurs naturally in very small amounts in ores and minerals containing uranium, and it is naturally luminescent. Radium is used as a source of radon gas for the treatment of disease and as a neutron source for scientific research. Its most stable isotope is Ra 226 with a half-life of 1,622 years. Atomic number 88; melting point 700°C; boiling point 1,737°C; valence 2. See Periodic Table.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
Cite This Source
Computing Dictionary

RAS
1. Row Address Strobe.
2. Remote Access Services.
3. Reliability, Availability, Serviceability.
(2000-08-13)

The Free On-line Dictionary of Computing, © 1993-2007 Denis Howe
Cite This Source
Abbreviations & Acronyms
ras
Referred with Amendments Senate
RAS

  1. reticular activating system

  2. Royal Astronomical Society

The American Heritage® Abbreviations Dictionary, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
Cite This Source
Search another word or see ras on Thesaurus | Reference
FacebookTwitterFollow us:
Partner Sites:
Ask AnswersEviteExpediaHotelsHotwireLife123LiveDailyMy Way