Printer Friendly
The Free Dictionary
1,017,792,457 visitors served.
?
Dictionary/
thesaurus
Medical
dictionary
Legal
dictionary
Financial
dictionary
Acronyms
 
Idioms
Encyclopedia
Wikipedia
encyclopedia
?

base
(redirected from al-Qaida)

   Also found in: Dictionary/thesaurus, Wikipedia, Hutchinson 0.09 sec.
base: see acids and bases acids and bases, two related classes of chemicals; the members of each class have a number of common properties when dissolved in a solvent, usually water.

Properties


..... Click the link for more information.
.

base

In chemistry, any substance that in water solution is slippery to the touch, tastes bitter, changes the colour of acid-base indicators (e.g., litmus paper), reacts with acids to form salts, and promotes certain chemical reactions (e.g., base catalysis). Examples of bases are the hydroxides of the alkali metals and alkaline earth metals (sodium, calcium, etc.; see caustic soda) and the water solutions of ammonia or its derivatives (amines). Such substances produce hydroxide ions (OH) in water solutions. Broader definitions of bases cover situations in which water is not present. See also acid-base theory; alkali; nucleophile.


(1) A starting or reference point.

(2) In a bipolar transistor, the elements that act as a switch. In NMOS and PMOS transistors, which make up CMOS circuits, the base is called the "gate." See transistor.

(3) A multiplier in a numbering system. In a decimal system, each digit position is worth 10x the position to its right. In binary, each digit position is worth 2x the position to its right.


(mathematics)base - radix.

?Page tools
Printer friendly
Cite / link
Email
Feedback
? Mentioned in ? References in periodicals archive
 
Of particular note are the two contributions making up the fourth section: 'Israel's Counterterrorism' and 'Combating Al-Qaida and Associated Groups'.
Of particular note are the two contributions making up the fourth section: 'Israel's Counterterrorism' and 'Combating Al-Qaida and Associated Groups'.
Instead, authorities chase anything that fails to pass an arcane sniff test, such as the Florida jokers who had a plan to blow up the Sears Tower -- once they located some bombs and some boots -- and a case in Lodi, where an ice-cream truck driver was accused of being in league with al-Qaida.
 
Encyclopedia browser? ? Full browser
 
 
Encyclopedia
?

Disclaimer | Privacy policy | Feedback | Copyright © 2008 Farlex, Inc.
All content on this website, including dictionary, thesaurus, literature, geography, and other reference data is for informational purposes only. This information should not be considered complete, up to date, and is not intended to be used in place of a visit, consultation, or advice of a legal, medical, or any other professional.. Terms of Use.