Meaning of normal by Wiktionary Dictionary
Explanation of normal by Wordnet Dictionary
- According to norms or rules .
- Usual; ordinary
- Healthy; not sick or ill
- Pertaining to a school to teach teachers how to teach .
- ( chemistry ) of, relating to, or being a solution containing one equivalent weight of solute per litre of solution .
- ( organic chemistry ) Describing a straight chain isomer of an aliphatic hydrocarbon, or an aliphatic compound in which a substituent is in the 1- position of such a hydrocarbon
- ( physics ) ( Of a mode in an oscillating system ) In which all parts of an object vibrate at the same frequency; See normal mode
- ( geometry ) Perpendicular to a tangent line or derivative of a surface in Euclidean space .
- ( algebra ) ( Of a subgroup ) whose cosets form a group
- ( algebra ) ( Of a field extension of a field K ) which is the splitting field of a family of polynomials in K
- ( probability theory, statistics ) ( Of a distribution ) which has a very specific bell curve shape
- ( complex analysis ) ( Of a family of continuous functions ) which is pre-compact
- ( set theory ) ( Of a function from the ordinals to the ordinals ) which is strictly monotonically increasing and continuous with respect to the order topology
- ( linear algebra ) ( Of a matrix ) which commutes with its conjugate transpose
- ( functional analysis ) ( Of a Hilbert space operator ) which commutes with its adjoint
- ( category theory ) ( Of an epimorphism ) which is the cokernel of some morphism
- ( category theory ) ( Of a monomorphism ) which is the kernel of some morphism
- ( category theory ) ( Of a morphism ) which is a normal epimorphism or a normal monomorphism
- ( category theory ) ( Of a category ) in which every monomorphism is normal
- ( Of a real number ) whose digits, in any base representation, enjoy a uniform distribution
- ( topology ) ( Of a topology ) in which disjoint closed sets can be separated by disjoint neighborhoods
- ( rail transport, of points ) in the default position, set for the most frequently used route .
From Latin normalis .
Explanation of normal by Wordnet Dictionary
- serve wine at normal room temperature
- normal diplomatic relations
- normal working hours
- normal word order
- normal curiosity
- the normal course of events
- Normal ( nôrmal ), a. [L. normalis, fr. norma rule, pattern, carpenter's square; prob. akin to noscere to know; cf. Gr. γνώριμος well known, γνώμων gnomon, also, carpenter's square: cf. F. normal. See Known, and cf. Abnormal, Enormous.]
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. ( 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: ( 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. ( 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. ( 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. Lyell. -- 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.
Syn. -- 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.
- Normal ( nôrmal ), n. [Cf. F. normale, ligne normale. See Normal, a.]
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.
☞ 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.
Definition of normal by GCIDE Dictionary