Definition of normal
- a. - 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.
- a. - According to a square or rule; perpendicular; forming a
right angle. Specifically: Of or pertaining to a normal.
- a. - Standard; original; exact; typical.
- a. - Denoting a solution of such strength that every cubic
centimeter contains the same number of milligrams of the element in
question as the number of its molecular weight.
- a. - 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.
- a. - Denoting that series of hydrocarbons in which no carbon
atom is united with more than two other carbon atoms; as, normal
pentane, hexane, etc. Cf. Iso-.
- a. - Any perpendicular.
- a. - 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.