base

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base

 [bās]
1. the lowest part or foundation of anything. See also basis.
2. the main ingredient of a compound.
3. the nonacid part of a salt; a substance that combines with acids to form salts. In the chemical processes of the body, bases are essential to the maintenance of a normal acid-base balance. Excessive concentration of bases in the body fluids leads to alkalosis.
4. a unit of a removable dental prosthesis.
5. in genetics, a nucleotide, particularly one in a nucleic acid sequence.
intermediary base the layer of cement between a dental restoration and the tooth structure, acting as an insulator and protective barrier.
nitrogenous base an aromatic, nitrogen-containing molecule that serves as a proton acceptor, e.g., purine or pyrimidine.
ointment base a vehicle for the medicinal substances carried in an ointment.
purine b's a group of compounds of which purine is the base, including uric acid, adenine, xanthine, and theobromine.
Bases. A, Purine and some substituted purine bases occurring in nucleic acids. B, Pyrimidine and some substituted pyrimidine bases occurring in nucleic acids. From Dorland's, 2000.
pyrimidine b's a group of chemical compounds of which pyrimidine is the base, including uracil, thymine, and cytosine, which are common constituents of nucleic acids.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

base

(bās), [TA]
1. The lower part or bottom; the part of a pyramidal or conic structure opposite the apex (for example, heart); the foundation.
See also: Brønsted base, Lewis base. Synonym(s): basis [TA], basement (1)
2. pharmacy the chief ingredient of a mixture.
See also: Brønsted base, Lewis base.
3. chemistry an electropositive element (cation) that unites with an anion to form a salt; a compound ionizing to yield hydroxyl ion.
See also: Brønsted base, Lewis base. Synonym(s): alkali (2)
4. Nitrogen-containing organic compounds (for example, purines, pyrimidines, amines, alkaloids, and ptomaines) that act as Brønsted bases.
5. Cations, or substances forming cations.
6. A substance the pH of which is over 7.0, in contrast to an acid.
[L. and G. basis]
Farlex Partner Medical Dictionary © Farlex 2012

base

(bās)
n.
1. Biology
a. The part of a plant or animal organ that is nearest to its point of attachment.
b. The point of attachment of such an organ.
2. Chemistry
a. Any of a class of compounds whose aqueous solutions are characterized by a bitter taste, a slippery feel, the ability to turn litmus blue, and the ability to react with acids to form salts.
b. A substance that yields hydroxide ions when dissolved in water.
c. A substance that can act as a proton acceptor.
d. A substance that can donate a pair of electrons to form a covalent bond.
3. One of the nitrogen-containing purines (adenine and guanine) or pyrimidines (cytosine, thymine, and uracil) that occurs attached to the sugar component of DNA or RNA.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.

base

The core of thing.
 
Anatomy
The bottom of a conical or pyramidal structure—basis TA, basement.
 
Chemistry
(1) An electropositive substance which combines with an acid to form a salt.
(2) A substance that dissociates to give H+ ions in aqueous solutions; chemical substance that ionises in water to release hydroxyl ions (OH-) or other ions that combine with hydrogen ions.
(3) A substance which can combine with a protons/H+ ions.
(4) Cation.
 
Drug slang
A regional street term for freebase cocaine; crack.
 
Molecular biology
A single nucleotide.

Pharmacology
The core active ingredient of a therapeutic agent.
 
Vox populi
The lowest part, bottom or fundamental part of structure.
Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.

base

(bās) [TA]
1. The lower part or bottom; the part of a pyramidal or conic structure opposite the apex; the foundation.
Synonym(s): basis [TA] .
2. pharmacy The chief ingredient of a mixture.
3. chemistry An electropositive element (cation) that unites with an anion to form a salt; a compound ionizing to yield hydroxyl ion.
Synonym(s): alkali (2) .
4. Nitrogen-containing organic compounds (e.g., purines, pyrimidines, amines, alkaloids, ptomaines) that act as Br̷ønsted bases.
5. A substance with a pH over 7.0, in contrast to an acid.
See also: Br̷ønsted base, Lewis base
[L. and G. basis]
Medical Dictionary for the Health Professions and Nursing © Farlex 2012

base

A chemical compound that combines with an acid to form a salt and water. A term applied in genetics to one of the four nitrogenous bases of DNA and RNA. In DNA the bases are adenine, thymine, guanine and cytosine. Guanine and adenine are purines and cytosine and thymine are pyrimidines. In RNA, the pyrimidine base uracil replaces thymine. (See also BASE PAIR).
Collins Dictionary of Medicine © Robert M. Youngson 2004, 2005

base

  1. a chemical substance which has a tendency to accept protons (H+); the base dissolves in water with the production of hydroxyl ions and reacts with acids to form salts.
  2. one of the PURINE or PYRIMIDINE components of NUCLEOTIDES.
Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005

base

(bās) [TA]
1. The lower part or bottom; the part of a pyramidal or conic structure opposite the apex (e.g., heart); the foundation.
Synonym(s): basement (1) .
2. pharmacy the chief ingredient of a mixture.
3. A substance with a pH over 7.0, in contrast to an acid.
[L. and G. basis]
Medical Dictionary for the Dental Professions © Farlex 2012

Patient discussion about base

Q. i am diabetic :( what is the right diet for me? should i avoid sugar based products? what is the amount of sugar in the blood that consider to be normal ?

A. You may find it all here:

www.nlm.nih.gov/medlineplus/diabeticdiet.html

Q. where is the greatest data base of Fibromyalgia over the net? do someone know the address ? will i find all my answers there ? is it like here where you can chat with other patient ?

A. i looked for information about Fibromyalgia all around the web and the best site gathering reliable information on it is:
http://www.nlm.nih.gov/medlineplus/fibromyalgia.html

gives you every web page about it and with a quality stamp :)


Q. Is good Nutrition is the base of a good and healthy life?

A. good nutrition will not solve all your health problems in life, you can still have infections and other health problems but it will reduce the amount of it in dramatic way.

More discussions about base
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References in periodicals archive ?
For successive governments that care little about the welfare of citizens, banning a popular festival like Basant had to have a more pressing reason.
The dispatches of Darashikoh, amidst his ideological differences, make a special mention of Basant merriment by Temurid elites.
The upgrade follows Basant Agro's better-than-expected profitability and cash accruals for the nine months ending 31 December 2009.
The outlet went first and then the original at Basant Lok downed shutters for good.
The Basant festival, over the years before the 2006 ban, had also evolved into one of the biggest in South Asia.
aACoeMany greetings to citizens on the festival whichEesymbolisesEenew energy, new ambition and new vigor- Basant Panchami.
Justice Shakeel-ur-Rehman Khan heard multiple petitions filed by Advocates Safdar Shaheen Pirzada, Sheraz Zaka and others against earlier announced plan to celebrate basant.
'We need four to six months of working to make Basant a safe festival,' he said, adding such festivities could be allowed given all government agencies did their job.
On December 18, 2018,Pakistan Tehreek-e-Insaf (PTI) led Punjab government announced to allow Basant festival celebrations in February, Information Minister Fayazul Hassan Chohan stated.
It is to be mentioned here that Punjab Information and Culture Minister Fayyaz ul Hassan Chohan announced the government's decision to lift the Basant ban and that it will be held in the second of February next year.
The petitioner contended that it was unconstitutional to permit Basant celebration in violation of the Supreme Court's ruling against deadly festival which has claimed many lives.
'We had announced for allowing Basant festival celebrations in February next year after complete homework in this regard.