Achilles Heel Spur Symptoms. Dr Baravarian explains heel spurs: what causes them, symptoms and revolutionary treatment options available at UFAI. Patients may experience pain, swelling, redness and a bony bump along the back of the heel bone. Symptoms often increase with activity or shoes that rub the back of the heel.
A chemical reaction is a process that is usually characterized by a chemical change in which the starting materials (reactants) are different from the products. Chemical reactions tend to involve the motion of electrons, leading to the formation and breaking of chemical bonds. chemical reaction is a process that is usually characterized by a chemical change in which the starting materials (reactants) are different from the products. Chemical reactions tend to involve the motion of electrons, leading to the formation and breaking of chemical bonds.
Princeton's WordNet (0.00 / 0 votes) Rate this definition: chemical reaction, reaction (noun). (chemistry) a process in which one or more substances are changed into others.there was a chemical reaction of the lime with the ground water. reaction (noun).rinceton's WordNet (0.00 / 0 votes) Rate this definition: chemical reaction, reaction (noun). (chemistry) a process in which one or more substances are changed into others.