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Normal   /nˈɔrməl/   Listen
adjective
Normal  adj.  
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."
2.
(Geom.) According to a square or rule; perpendicular; forming a right angle; as, a line normal to the base. Specifically: Of or pertaining to a normal.
3.
(Chem.) Standard; original; exact; typical. Specifically:
(a)
(Quantitative Analysis) 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.
(b)
(Chem.) 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.
(c)
(Organ. Chem.) Denoting that series of hydrocarbons in which no carbon atom is bound to more than two other carbon atoms; as, normal pentane, hexane, etc. Cf. Iso-.
Normal equations (Method of Least Squares), a set of equations of the first degree equal in number to the number of unknown quantities, and derived from the observations by a specified process. The solution of the normal equations gives the most probable values of the unknown quantities.
Normal group (Geol.), a group of rocks taken as a standard.
Normal place (of a planet or comet) (Astron.), the apparent place in the heavens of a planet or comet at a specified time, the place having been determined by a considerable number of observations, extending perhaps over many days, and so combined that the accidental errors of observation have largely balanced each other.
Normal school, a school whose methods of instruction are to serve as a model for imitation; an institution for the training of teachers.
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.


noun
Normal  n.  
1.
(Geom.) Any perpendicular.
2.
(Geom.) 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. Note: The term normal is also used to denote the distance along the normal line from the curve to the axis of abscissas or to the center of curvature.





Collaborative International Dictionary of English 0.48


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"Normal" Quotes from Famous Books



... down at the crystal in his hand. About the size of a child's toy block. He could almost understand Baker's position. It was pretty silly to suppose this thing could have the powers Ellerbee said it had. No electric energy applied. It merely amplified the normal telepathic impulses existing in every human mind, Ellerbee said. Fenwick sighed. You just couldn't tell ahead of time that a thing wasn't going to pan out. He knew his philosophy was right. These had to be investigated—every lousy, crackpot one of them. You could ...
— The Great Gray Plague • Raymond F. Jones
... front had set the wires singing to the evening editions; for Lanstron had directed that they be given the ran of the army's lines at daybreak. They told of soldiers awakening after the debauch of yesterday's fighting, normal and rested, glowing with the security of possession of the frontier and responding to their leaders' sentiment; of officers of the type favored by Partow who would bring the industry that commands respect to any ...
— The Last Shot • Frederick Palmer
... number; and secondly, that in old areas of subsidence each separate atoll must be increasing indefinitely in thickness, if proofs of their occasional destruction could not have been adduced. Thus have we traced the history of these great rings of coral-rock, from their first origin through their normal changes, and through the occasional accidents of their existence, to their death ...
— A Naturalist's Voyage Round the World - The Voyage Of The Beagle • Charles Darwin
... from that of his brother. He was his father's pride. Serjeant Borrow could not understand George with his extraordinary taste for the society of queer people—the wild Irish and the ragged Romanies. John had far more of the normal in his being. Borrow gives us in Lavengro our earliest ...
— George Borrow and His Circle - Wherein May Be Found Many Hitherto Unpublished Letters Of - Borrow And His Friends • Clement King Shorter
... young can be nothing but the effect of calculating selfishness or the index of psychical anemia—have an air of complacency or of pity for socialists whom they consider, at best, as "misled," without perceiving that what is normal is for the old to be conservatives, but that young conservatives can be nothing but egoists who are afraid of losing the life of idle luxury into which they were born or the advantages of the orthodox ...
— Socialism and Modern Science (Darwin, Spencer, Marx) • Enrico Ferri


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