The Collaborative International Dictionary of English. 2000.
polyacid — adjective Capable of neutralizing, or of combining with, several molecules of a monobasic acid; having more than one hydrogen atom capable of being replaced by acid radicals; said of certain bases; as, calcium hydrate and glycerin are polyacid… … Wiktionary
polyacid — An acid capable of liberating more than one hydrogen ion per molecule; e.g., H2SO4, citric acid. [G. polys, much, many + acid] * * * poly·ac·id päl ē .as əd n 1) an acid (as phosphoric acid) having more than one acid hydrogen atom 2) an acid of a … Medical dictionary
polyacid — /pol ee as id/, Chem. adj. 1. having more than one replaceable hydrogen atom. 2. capable of reacting with more than one equivalent weight of an acid. n. 3. an acid having more than one replaceable hydrogen atom. 4. an oxyacid containing the… … Universalium
polyacid — adj. having more than one hydrogen atom which may be replaced (Chemistry) … English contemporary dictionary
polyacid — poly·acid … English syllables
polyacid — I. |pälē+ noun Etymology: International Scientific Vocabulary poly + acid 1. : an acid (as phosphoric acid) having more than one acid hydrogen atom 2. : a complex acid of the group of isopoly or heteropoly acids II. adjective 1 … Useful english dictionary
Glass ionomer cement — A Glass Ionomer Cement (GIC) is one of a class of materials commonly used in dentistry as filling materials and luting cements. These materials are based on the reaction of silicate glass powder and polyalkeonic acid. These tooth coloured… … Wikipedia
Dental compomer — Dental compomers are materials which are used in dentistry as restorative material. They were introduced in the early 1990s as a hybrid of two other dental materials: dental composites and glass ionomer cement. They are also known as polyacid… … Wikipedia
Tantalic — Tan*tal ic, a. (Chem.) Of or pertaining to tantalum; derived from, or containing, tantalum; specifically, designating any one of a series of acids analogous to nitric acid and the polyacid compounds of phosphorus. [1913 Webster] … The Collaborative International Dictionary of English
Polylactic acid — The skeletal formula of poly(lactic acid) Poly(lactic acid) or polylactide (PLA) is a thermoplastic aliphatic polyester derived from renewable resources, such as corn starch (in the United States), tapioca products (roots, chips or starch mostly… … Wikipedia
