normal
1 Americanadjective
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conforming to the standard or the common type; usual; not abnormal; regular; natural.
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serving to establish a standard.
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Psychology.
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approximately average in any psychological trait, as intelligence, personality, or emotional adjustment.
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free from any mental disorder; sane.
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Biology, Medicine/Medical.
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free from any infection or other form of disease or malformation, or from experimental therapy or manipulation.
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of natural occurrence.
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Mathematics.
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being at right angles, as a line; perpendicular.
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of the nature of or relating to a mathematical normal.
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(of an orthogonal system of real functions) defined so that the integral of the square of the absolute value of any function is 1.
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(of a topological space) having the property that corresponding to every pair of disjoint closed sets are two disjoint open sets, each containing one of the closed sets.
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(of a set) having the property that the same set results when all the elements of the set are operated on consistently on the left and consistently on the right by any element of the set; invariant.
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Chemistry.
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(of a solution) containing one equivalent weight of the constituent in question in one liter of solution.
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relating to an aliphatic hydrocarbon having a straight unbranched carbon chain, each carbon atom of which is joined to no more than two other carbon atoms.
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of or relating to a neutral salt in which any replaceable hydroxyl groups or hydrogen atoms have been replaced by other groups or atoms, as sodium sulfate, Na 2 SO 4 .
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noun
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the standard or the common type.
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the usual state, amount, level, etc., especially the average or mean.
Production may fall below normal.
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Mathematics.
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a perpendicular line or plane, especially one perpendicular to a tangent line of a curve, or a tangent plane of a surface, at the point of contact.
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the portion of this perpendicular line included between its point of contact with the curve and the x- axis.
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noun
adjective
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usual; regular; common; typical
the normal way of doing it
the normal level
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constituting a standard
if we take this as normal
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psychol
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being within certain limits of intelligence, educational success or ability, etc
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conforming to the conventions of one's group
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biology med (of laboratory animals) maintained in a natural state for purposes of comparison with animals treated with drugs, etc
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N. chem (of a solution) containing a number of grams equal to the equivalent weight of the solute in each litre of solvent
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chem denoting a straight-chain hydrocarbon: a normal alkane . Prefix: n-, e.g. n- octane
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geometry another word for perpendicular
noun
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the usual, average, or typical state, degree, form, etc
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anything that is normal
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geometry a line or plane perpendicular to another line or plane or to the tangent of a curved line or plane at the point of contact
Other Word Forms
- antinormal adjective
- half-normal adjective
- hypernormal adjective
- nonnormal adjective
- normality noun
- normalness noun
- overnormal adjective
- quasi-normal adjective
- quasi-normally adverb
- seminormal adjective
- seminormally adverb
- unnormal adjective
- unnormally adverb
Etymology
Origin of normal
First recorded in 1520–30; from Latin normālis “made according to a carpenter's square,” equivalent to norm(a) ( norm ) + -ālis adjective suffix; -al 1
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
Tests showed the material steadily decomposed under normal soil conditions, with full breakdown estimated within 13 weeks.
From Science Daily
Officials said the Immigration Act allowed discretion to grant Nelson indefinite leave to remain outside the normal immigration rules - which was eventually upgraded to full citizenship.
From BBC
Next Friday, the Bureau of Labor Statistics releases the jobs report, returning to its normal release schedule for the first time since early September.
From Barron's
Messi, who was brought on as a half-time substitute, was wrestled to the turf by a spectator with two minutes remaining of normal time.
From BBC
“We gave ourselves a mini-psychology degree just by doing this week after week. So we strike a balance between being relatable, normal girls and people who have been in the game for years.”
From Los Angeles Times
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
