Dictionary.net

conforming with or constituting a norm or standard or level or type or social norm; not abnormal; "serve wine at normal room temperature"; "normal diplomatic relations"; "normal working hours"; "normal word order"; "normal curiosity"; "the normal course of events"

in accordance with scientific laws

being approximately average or within certain limits in e.g. intelligence and development; "a perfectly normal child"; "of normal intelligence"; "the most normal person I've ever met"

forming a right angle

(psychology) being approximately average or within certain limits in e.g. intelligence and development; "a perfectly normal child"; "of normal intelligence"; "the most normal person I've ever met"

in accordance with scientific laws

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.

According to a square or rule; perpendicular; forming a right angle. Specifically: Of or pertaining to a normal.

Standard; original; exact; typical.

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.

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-.

Any perpendicular.

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.

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.

According to a square or rule; perpendicular; forming a right angle. Specifically: Of or pertaining to a normal.

Standard; original; exact; typical.

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.

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-.

Any perpendicular.

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.

According to rule; perpendicular; regular; natural; as, a normal heartbeat; serving as a standard or model.

Normally.

Normally.

According to rule: regular: analogical: perpendicular.

A perpendicular.

Normally.

A usual or accepted rule or process.

Average or mean value.

1. Typical, usual, healthy, according to the rule or standard. 2. In bacteriology, nonimmune, untreated; noting an animal, or the serum or substance contained therein of an animal which has not been experimentally immunized against any microorganism or its products.

Regular; analogical, serving as a standard.

According to norm or rule; regular; perpendicular.

A perpendicular. Normal school, an institution for training teachers.

According to established rule or law; obeying what is believed to be the natural law; perpendicular; natural form or structure; teaching first rules and principles; instructing in the art of teaching.

The perpendicular to a curve at some particular point, being also the perpendicular to a tangent.

Consistent with type or standard.

According to rule; perpendicular. The normal line, norma verticalis, of Blumenbach, is a vertical line let fall from the prominence of the frontal bone and shaving the superior maxillary, so as to mark the projection of the latter bone beyond the arch of the forehead.

Agreeing with the regular and established type.

Corresponding to the perfect type in all respects. [Lat.]

Conforming to the ordinary standard. [Lat.]

Of the salts of polybasic acids, having all the hydrogen of the latter replaced by a metal; of hydrocarbons and their derivatives (alcohols, ethers, aldehyds, acids, etc.), having no carbon atom directly connected in their structural formulae with more than two other carbon atoms, [Lat.]

n. A perpendicular ;- a straight line perpendicular to the tangent of a curve at any point, and included between the curve and the axis of the abscissa.