inflection

[in-flek-shuhn]
noun
1.
modulation of the voice; change in pitch or tone of voice.
2.
Also, flection. Grammar.
a.
the process or device of adding affixes to or changing the shape of a base to give it a different syntactic function without changing its form class.
b.
the paradigm of a word.
c.
a single pattern of formation of a paradigm: noun inflection; verb inflection.
d.
the change in the shape of a word, generally by affixation, by means of which a change of meaning or relationship to some other word or group of words is indicated.
e.
the affix added to produce this change, as the -s in dogs or the -ed in played.
f.
the systematic description of such processes in a given language, as in serves from serve, sings from sing, and harder from hard (contrasted with derivation ).
3.
a bend or angle.
4.
Mathematics. a change of curvature from convex to concave or vice versa.
Also, especially British, inflexion.


Origin:
1525–35; variant spelling of inflexion < Latin inflexiōn- (stem of inflexiō) a bending. See inflect, -ion

inflectionless, adjective
preinflection, noun

infection, inflection.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Collins
World English Dictionary
inflection or inflexion (ɪnˈflɛkʃən)
 
n
1.  modulation of the voice
2.  (grammar) a change in the form of a word, usually modification or affixation, signalling change in such grammatical functions as tense, voice, mood, person, gender, number, or case
3.  an angle or bend
4.  the act of inflecting or the state of being inflected
5.  maths See also point of inflection a change in curvature from concave to convex or vice versa
 
inflexion or inflexion
 
n
 
in'flectional or inflexion
 
adj
 
in'flexional or inflexion
 
adj
 
in'flectionally or inflexion
 
adv
 
in'flexionally or inflexion
 
adv
 
in'flectionless or inflexion
 
adj
 
in'flexionless or inflexion
 
adj

Collins English Dictionary - Complete & Unabridged 10th Edition
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American Heritage
Medical Dictionary

inflection in·flec·tion (ĭn-flěk'shən)
n.
An inward bending.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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American Heritage
Cultural Dictionary

inflection definition


A change in the form of a word to reflect different grammatical functions of the word in a sentence. English has lost most of its inflections. Those that remain are chiefly possessive ('s), as in “the boy's hat”; plural (-s), as in “the three girls”; and past tense (-d or -ed), as in cared. Other inflections are found in pronouns — as in he, him, his — and in irregular words such as think/thought, child/children, and mouse/mice.

The American Heritage® New Dictionary of Cultural Literacy, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Encyclopedia Britannica
Encyclopedia

inflection

in linguistics, the change in the form of a word (in English, usually the addition of endings) to mark such distinctions as tense, person, number, gender, mood, voice, and case. English inflection indicates noun plural (cat, cats), third person singular present tense (I, you, we, they buy; he buys), past tense (we walk, we walked), verbals (called, calling), and comparatives (big, bigger, biggest). Changes within the stem, or main word part, are another type of inflection, as in sing, sang, sung and goose, geese. The paradigm of the Old Icelandic u-stem noun skjoldr ("shield"), for example, includes forms with both internal change and suffixation; the nominative singular form is skjoldr, the genitive singular is skjaldar, and the nominative plural is skildir. Many languages, such as Latin, Spanish, French, and German, have a much more extensive system of inflection. For example, Spanish shows verb distinction for person and number, "I, you, he, they live," vivo, vives, vive, viven ("I live," "you live," "he lives," "they live"). A number of languages, especially non-Indo-European ones, inflect with prefixes and infixes, word parts added before a main part or within the main part. Inflection differs from derivation in that it does not change the part of speech. Derivation uses prefixes and suffixes (e.g., in-, -tion) to form new words (e.g., inform, deletion), which can then take inflections.

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Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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Example sentences
In tonal languages, the same word can have widely different meanings depending
  on the inflection of the speaker.
But then, still a long time ago, another kind of inflection infected the verbs.
Their emotional transparency was rooted in the fact that each expressive
  inflection was joined seamlessly to the next.
Then the slope rises ever more steeply as bacteria proliferate until it reaches
  an inflection point.
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