An acid that is an organic compound, especially a carboxylic acid.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
How to use organic acid in a sentence
An organic acid, obtained by oxidizing many organic substances, and found in the red ant.
Chemically, carmine is a compound of carminic acid with alumina, lime and some organic acid.
The air dissolves at the same time a certain amount of organic acid and resinous products which the hide has absorbed.Scientific American Supplement, No. 286 | Various
By further exposure to air the organic acid is oxidized to carbonic acid, and hydrated oxide of iron remains.Peat and its Uses as Fertilizer and Fuel | Samuel William Johnson
But most of the natural gums yield a mixture of galactose, some pentose, and some complex organic acid.The Chemistry of Plant Life | Roscoe Wilfred Thatcher