normal (redirected from Normal (disambiguation))

Normal, town (1990 pop. 40,023), McLean co., central Ill.; inc. 1865. It is the center of a productive farming region. Motor vehicles are manufactured in Normal. The town originally grew around Illinois State Univ. (1857; formerly called Illinois State Normal Univ.), which remains a major contributor to its economy.

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normal

1. Psychol

a. being within certain limits of intelligence, educational success or ability, etc.

b. conforming to the conventions of one's group

2. Biology Med (of laboratory animals) maintained in a natural state for purposes of comparison with animals treated with drugs, etc.

3. Chem (of a solution) containing a number of grams equal to the equivalent weight of the solute in each litre of solvent.

4. Chem denoting a straight-chain hydrocarbon: a normal alkane. Prefix: n-, e.g. n-octane

5. Geometry another word for perpendicular

6. Geometry a line or plane perpendicular to another line or plane or to the tangent of a curved line or plane at the point of contact

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normal [′nȯr·məl]

(meteorology)

The average value of a meteorological element over any fixed period of years that is recognized as standard for the country and element concerned.