Go to MSN Homeencarta®
HomeEncyclopediaDictionaryAtlasK-12 SuccessCollege & Grad SchoolDegrees & TrainingQuizzesMore
Dictionary
Find
in
Dictionary
Thesaurus
Translations
ABCDEFGHIJKLMNOPQRSTUVWXYZ
Click to move up the list of words
52-week
527 commitee
64-bit key
8(a) firm
802.11
9/11
911
999
A (1)
A (2)
A (3)
A.
a (1)
a (2)
a (3)
a (4)
a- (1)
Click to move down the list of words
Print Preview
See pronunciation key
Search for "A" in all of MSN Encarta
E-mail this entry
Blog about this entry on MSN Spaces
Download the MSN Encarta Right-Click Dictionary

A (1)
A


symbol 
Definition:
 
1. chemistry activity
2. biochemistry adenine
3. measurements ampere
4. physics mass number
5. comput 10 ( used in hexadecimal notation )

Encarta® World English Dictionary [North American Edition] © & (P)2007 Microsoft Corporation. All rights reserved. Developed for Microsoft by Bloomsbury Publishing Plc.
Advertisement

Also on Encarta
• 10 tips for building your English vocabulary
• Alternatives to the M.B.A.
• GPS for students
• Saving for college
• Presidential Myths Quiz
• Coffee break: Recharge your brain
Englishtown: Learn English online
Our Partners
• ApplyWise Online College Admissions Counseling
• The Princeton Review
• Tutor.com: Live Help When You Get Stuck
Also on MSN
• Iditarod: Toughest Race on Earth on the Discovery Channel
• MSN TV Scavenger Hunt: Win the ultimate prize pack
• MSN Shopping: Best books for the season
• MSN Careers: Nail that job interview
• Today's news on MSNBC
Encarta Message Boards (© Rubberball/Jupiterimages)
MSN Shopping
Encarta RSS Feeds
© 2008 Microsoft