normal

normal is an Adverb

Definition:

[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.