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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



... any way whatever. Moreover, when it came to legislating against the mutinous labourers, King and Parliament, while sternly setting their faces against the rise in wages, do not take the twenty-third year of the King as the standard year by which to settle what the normal rate of wages should be. They go back to the twentieth year, ou cynk ou sis ans devans. That is to say, the wages had been steadily rising for ten years before the plague; the labourers had been getting ...
— The Coming of the Friars • Augustus Jessopp
... and scolded Mitty well for crying so much. And Mitty pulled herself together and began to feel that perhaps life could go on even if Burke were away for a time. Granny's scolding did her more good than all the neighbours' sympathy. It was the atmosphere of normal times, and set her back into the sanity of every ...
— In Orchard Glen • Marian Keith
... scientific agriculture, as drainers of fens and morasses, as clearers of forests, as makers of roads, as tillers of the reclaimed soil, as architects of durable and even stately buildings, as exhibiting a visible type of orderly government, as establishing the superiority of peace over war as the normal condition of life, as students in the library which the rule set up in every monastery, as the masters in schools open not merely to their own postulants but to the children of secular families also, that they won their high place in history ...
— The Sword Maker • Robert Barr
... Aunt Lucile was simply funny. She melted, visibly, like a fragment left on the curb by the iceman, whenever Paula—turned the current on. What made this the more striking was that Aunt Lucile's normal mood to-day impressed Mary as rather aggressively sell-contained. Was it just that Mary had forgotten how straight she sat and how precisely she moved about? Had she always had that discreet significant ...
— Mary Wollaston • Henry Kitchell Webster
... realized that Hester, when in her normal condition, saw things which she herself did not see. She had long since realized that Hester always accepted as final the limit of vision of the person she was with, but that that limit changed with every person she met. Rachel had seen her adjust it to persons ...
— Red Pottage • Mary Cholmondeley


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