NORMAL

adjective

Synonyms

Normal, Regular, Ordinary. Regular and ordinary are popular terms of well-known signification; normal has now a more specific sense, arising out of its use in science. A thing is normal, or in its normal state, when strictly conformed to those principles of its constitution which mark its species or to the standard of a healthy and natural condition. It is abnormal when it departs from those principles.

Definitions

1. According to an established norm, rule, or principle; conformed to a type, standard, or regular form; performing the proper functions; not abnormal; regular; natural; analogical. Deviations from the normal type. Hallam.
2. According to a square or rule; perpendicular; forming a right angle. Specifically: Of or pertaining to a normal.
3. Standard; original; exact; typical. Specifically:
4. Denoting certain hypothetical compounds, as acids from which the real acids are obtained by dehydration; thus, normal sulphuric acid and normal nitric acid are respectively S(OH)6, and N(OH)5.

Other Definitions

This word also has another definition:

NORMAL (noun)

A straight line or plane drawn from any point of a curve or surface so as to be perpendicular to the curve or surface at that point.

Added: October 09, 2025 Updated: October 09, 2025

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