- Also called orthoboric acid. Chemistry, Pharmacology. a white, crystalline acid, H3BO3, occurring in nature or prepared from borax: used chiefly in the manufacture of ceramics, cements, glass, and enamels, for fireproofing, and in medicine in aqueous solution as a mild antiseptic.
- Chemistry. any of a group of acids containing boron.
Origin of boric acid
First recorded in 1865–70
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for boric acid
If any discharge is present, the boric-acid solution should invariably be used twice a day.The Care and Feeding of Children
L. Emmett Holt
Boric-acid wash (15 grains to the ounce) and oxide-of-zinc ointment, applied in the same manner as the above.Essentials of Diseases of the Skin
Henry Weightman Stelwagon
Then the raw surface is dusted over with pure boric acid or aristol, and the boric-acid ointment applied as before.
- Also called: orthoboric acid a white soluble weakly acid crystalline solid used in the manufacture of heat-resistant glass and porcelain enamels, as a fireproofing material, and as a mild antiseptic. Formula: H 3 BO 3Systematic name: trioxoboric(III) acid
- any other acid containing boron
- A water-soluble white or colorless crystalline compound used as an antiseptic and preservative.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
- A white or colorless crystalline compound that occurs naturally or is produced artificially from borax. It is used as an antiseptic and preservative, and in cements, enamels, and cosmetics. Chemical formula: H3BO3.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.