Nour on ''Sciences de la nature'' This glossary is to describe terms that I can use in my program ''Sciences pures et Appliquées''. For this glosarry I used this source : '' wikipedia.org '' acid noun An acid is a molecule or ion capable of donating a proton (hydrogen ion H+) (a Brønsted–Lowry acid), or, alternatively, capable of forming a covalent bond with an electron pair (a Lewis acid). Example: Aqueous Arrhenius acids have characteristic properties which provide a practical description of an acid. fr: acide Your browser does not support the audio element. algebra noun Algebra is one of the broad parts of mathematics, together with number theory, geometry and analysis. In its most general form, algebra is the study of mathematical symbols and the rules for manipulating these symbols; it is a unifying thread of almost al...