- 1. Typical; usual; according to the rule or standard. 2. In bacteriology, nonimmune; untreated; denoting an animal, or the serum or substance contained therein, that has not been experimentally or naturally immunized against a microorganism or its products. 3. Denoting a solution containing 1 eq of replaceable hydrogen or hydroxyl per liter; e.g., 1 mol/L HCl is 1 n, but 1 mol/L H2SO4 is 2 n. 4. In psychiatry and psychology, denoting a level of effective functioning that is satisfactory both to persons and to their social milieus. 5. Referring to a straight line (or plane) at a right angle to another line (or plane). 6. Not diseased or having been subjected to an experimental procedure. [L. normalis, according to pattern]
* * *nor·mal 'nȯr-məl adj1 a) according with, constituting, or not deviating from a norm, rule, or principleb) conforming to a type, standard, or regular pattern2) occurring naturally and not because of disease, inoculation, or any experimental treatment <\normal immunity>3 a) of, relating to, or characterized by average intelligence or developmentb) free from mental disorder: SANEc) characterized by balanced well-integrated functioning of the organism as a whole4 a) of a solution having a concentration of one gram equivalent of solute per literb) containing neither basic hydrogen nor acid hydrogen <\normal phosphate of silver>c) not associated <\normal molecules>d) having a straight-chain structure <\normal pentane>nor·mal·ly 'nȯr-mə-lē advnormal n a subject who is normal
* * *nor·mal (norґməl) [L. norma rule] 1. agreeing with the regular and established type. 2. in chemistry, (a) denoting a solution containing in each 1000 mL 1 g equivalent weight of the active substance, symbol N or N; (b) denoting aliphatic hydrocarbons in which no carbon atom is combined with more than 2 other carbon atoms, symbol n-; (c) denoting salts formed from acids and bases in such a way that no acidic hydrogen of the acid remains nor any of the basic hydroxyl of the base.
Medical dictionary. 2011.