Science / Chemistry / Acid: ([Lat. Acidus, sour]) Compare with base. 1. A compound which releases hydrogen ions (H+) in solution (Arrhenius). 2. A compound containing detachable hydrogen ions (Bronsted-Lowry). 3. A compound that can accept a pair of electrons from a base (Lewis).

Carboxylic Acid

Science / Chemistry / Carboxylic Acid: A carboxylic acid is an organic molecule with a -(C=O)-OH group. The group is also written as -COOH and is called a carboxyl group. The hydrogen on the -COOH group ionizes in water; carboxylic acids a MORE

Gamma Amino Butyric Acid (GABA)

Health / Vitamins / Gamma Amino Butyric Acid (GABA): Amino acid classified as an important inhibitory neurotransmitter, stimulating relaxation and sleep, ensures balance between excitation and inhibition, stimulates the Human Growth Hormone, anti-aging MORE

Gamma Linolenic Acid (GLA)

Health / Vitamins / Gamma Linolenic Acid (GLA): Essential fatty acid contained especially by plant-extracted oils, useful in normal brain function, growth, normal development, bone strength, skin and hair growth stimulation, stimulator of reproduct MORE

Beta Hydroxy Acids (BHA)

Health / Vitamins / Beta Hydroxy Acids (BHA): Lipid soluble substances used in acne therapy for oily skin due to their exfoliating properties and in the prevention of clogged pores, most known BHA is salicylic acid. MORE

Acid Anhydride

Science / Chemistry / Acid Anhydride: Nonmetallic oxides or organic compounds that react with water to form acids. For example, SO2, CO2, P2O5, and SO3 are the acid anhydrides of sulfurous, carbonic, phosphoric, and sulfuric acids, respec MORE

Acid Rinse

Entertainment / Photography / Acid Rinse: Weak acid solution used after development and before fixation. By neutralizing alkaline developer left on the photographic material it arrests development. MORE