- normal
-
—normality, normalness, n./nawr"meuhl/, adj.1. conforming to the standard or the common type; usual; not abnormal; regular; natural.2. serving to establish a standard.3. Psychol.a. approximately average in any psychological trait, as intelligence, personality, or emotional adjustment.b. free from any mental disorder; sane.4. Biol., Med.a. free from any infection or other form of disease or malformation, or from experimental therapy or manipulation.b. of natural occurrence.5. Math.a. being at right angles, as a line; perpendicular.b. of the nature of or pertaining to a mathematical normal.c. (of an orthogonal system of real functions) defined so that the integral of the square of the absolute value of any function is 1.d. (of a topological space) having the property that corresponding to every pair of disjoint closed sets are two disjoint open sets, each containing one of the closed sets.e. (of a subgroup) having the property that the same set of elements results when all the elements of the subgroup are operated on consistently on the left and consistently on the right by any element of the group; invariant.6. Chem.a. (of a solution) containing one equivalent weight of the constituent in question in one liter of solution.b. pertaining to an aliphatic hydrocarbon having a straight unbranched carbon chain, each carbon atom of which is joined to no more than two other carbon atoms.c. of or pertaining to a neutral salt in which any replaceable hydroxyl groups or hydrogen atoms have been replaced by other groups or atoms, as sodium sulfate, Na2SO4.n.7. the average or mean: Production may fall below normal.8. the standard or type.9. Math.a. a perpendicular line or plane, esp. one perpendicular to a tangent line of a curve, or a tangent plane of a surface, at the point of contact.b. the portion of this perpendicular line included between its point of contact with the curve and the x-axis.[1520-30; < L normalis made according to a carpenter's square, equiv. to norm(a) (see NORM) + -alis -AL1]
* * *
town, McLean county, central Illinois, U.S. At the junction of three interstate highways, Normal adjoins Bloomington (south) and is located about 65 miles (105 km) northeast of Springfield. It was founded in the early 1850s at the intersection of the Illinois Central and Chicago and Alton railroads and was initially called North Bloomington (or “The Junction”). In 1857 the Illinois legislature passed a law that called for establishing a normal (teacher-training) school in the locale that offered the best financial arrangement. North Bloomington's citizens and businesses subsequently were successful in raising funds, and attorney Abraham Lincoln (Lincoln, Abraham) drafted a bond to ensure that the town would meet its financial obligations. That year Illinois State Normal University (now Illinois State University) was established, and in 1867 the town was incorporated and renamed Normal. The local economy is based on the university and agriculture. Normal is situated in the state's richest corn (maize) and soybean producing area. Insurance and the manufacture of automobiles and tires are also important. The town is the seat of Heartland Community College (Normal branch opened 2000); there is also a campus (1979) of Lincoln (junior) College. A popular local attraction is the Art Deco theatre, which opened in 1937 and was restored in the 1990s. Inc. 1867. Pop. (2000) town, 45,386; Bloomington-Normal MSA, 150,433; (2006 est.) town, 50,681; Bloomington-Normal MSA, 162,069.* * *
Universalium. 2010.
