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dibasic

American  
[dahy-bey-sik] / daɪˈbeɪ sɪk /

adjective

Chemistry.
  1. containing two replaceable or ionizable hydrogen atoms.

    dibasic acid.

  2. having two univalent, basic atoms, as dibasic sodium phosphate, Na 2 HPO 4 .


dibasic British  
/ ˌdaɪbeɪˈsɪsɪtɪ, daɪˈbeɪsɪk /

adjective

  1. (of an acid, such as sulphuric acid, H 2 SO 4 ) containing two acidic hydrogen atoms Compare diacidic

  2. (of a salt) derived by replacing two acidic hydrogen atoms

    dibasic sodium phosphate, Na2HPO4

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

dibasic Scientific  
/ dī-bāsĭk /
  1. Relating to an acid that contains two hydrogen atoms that can be replaced by metal ions. Sulfuric acid (H 2 SO 4) is a dibasic acid. The hydrogens can be replaced by sodium and hydrogen to form sodium hydrogen sulfate (NaHSO 4) or by two sodium atoms to form sodium sulfate (Na 2 SO 4).

  2. Relating to a compound that contains two basic monovalent groups or atoms.


Other Word Forms

Etymology

Origin of dibasic

First recorded in 1865–70; di- 1 + basic

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

Less-toxic paint strippers have been on the market for years—California authorities recommend ones with benzyl alcohol, soy, or dibasic esters—but they represent the minority of products.

From Slate Sep. 21, 2015

Researchers at the University of Illinois and at Manhattan's Sydenham Hospital, testing the use of urea and dibasic ammonium phosphate to kill bacteria associated with tooth decay, had reported promising results.

From Time Magazine Archive

Nylon is technically described as "synthetic fibre-forming polymeric amides having a protein-like structure, produced by reacting diamines and dibasic carboxylic acids."

From Time Magazine Archive

By-products of oxidation.—The liquors from B were found to contain saccharic acid: the acid from C and B contained a dibasic acid which appeared to be tartaric acid.

From Researches on Cellulose 1895-1900 by Cross, C. F.

The three acids of sulphur are dibasic acids.

From An Elementary Study of Chemistry by McPherson, William

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