derivation

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inflection

inflection, in grammar. In many languages, words or parts of words are arranged in formally similar sets consisting of a root, or base, and various affixes. Thus walking, walks, walker have in common the root walk and the affixes -ing, -s, and -er. An inflectional affix carries certain grammatical restrictions with it; for example, with the plural inflection -s, a change from singular to plural in the noun tree/trees requires a concommitant change in the verb form from singular to plural: “the tree is green,” “the trees are green.” Other examples of English inflectional suffixes are the verb tenses. Many languages have far more extensive inflection than English, e.g., Latin, Eskimo, Arabic. In Latin grammar the typical noun and adjective are inflected for case and number, and the adjective is additionally inflected for the gender of the noun. Latin verbs have overlapping categories of inflection: mood, voice, tense, person, and number. Noun inflection is called declension, and the inflection of verbs is called conjugation. To be distinguished from inflectional affixes are those of derivation. Derivation is the process of forming words from other words or roots by the addition of affixes that in themselves either have meaning or denote word function. Derivational affixes in English may be either prefixes—e.g., de-press, un-common—or suffixes—e.g., work-er, retire-ment, happi-ness. The name stem is given to a root together with its derivational affixes; thus in racket-eer-s, racket is the root, racketeer the stem, and -s the plural inflection. Beginning in the 19th cent., the modification of a root or base by the amount of inflection or derivation in a language was used as a basis for classification. An isolating language is one in which there are only roots, with no derivation or inflection, such as Chinese. On the other hand, inflected languages, e.g., English and Latin, use roots, stems, and affixes, but the amount of inflection is not as great as in agglutinative languages where roots and affixes are readily identifiable, e.g., Turkish baba “father,” babam “my father,” babama “to my father.” The old belief that agglutinative languages were the most primitive and isolating languages the most civilized is no longer held, it being recognized that every language is just as expressive as any other and can develop new vocabulary to fit new situations. See ablaut; grammar; umlaut; English language.
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derivation

[‚der·ə′vā·shən]
(mathematics)
The process of deducing a formula.
A function D on an algebra which satisfies the equation D (uv) = uD (v) + vD (u).
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

derivation

a. the process of deducing a mathematical theorem, formula, etc., as a necessary consequence of a set of accepted statements
b. this sequence of statements
c. the operation of finding a derivative
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005
References in periodicals archive ?
[sections] 1.863-9(f), Example 11 (provider of Internet access derives communication income; replication of sites to speed up response considered de minimis).
The customer, not the contract manufacturer, is the only entity that ever owns--and hence that can derive gross receipts from the sale of--the Qpp.
After showing an Egyptian wall painting of two female dancers clad only in headdresses, jewelry, and belts, Berkut surmises that the name of the dance derives from the "belt of Sarah" - that is saraband!
Applicability of Statements on Standards for Accounting and Review Services When an Accountant Engaged to Perform a Business Valuation Derives Information from an Entity's Tax Return provides guidance to accountants engaged to perform a business valuation of any entity, when it may be necessary for the accountant to derive financial information to be used in that business valuation from the client's tax return.
Above all, he has developed a mission to challenge the still-predominant stereotypes of middleclass respectability, pointing up the propensity of middle-class men (especially but not exclusively young, single ones) to become involved in gambling and blood sports, to mix across the porous divisions between classes and definitions of 'rough' and 'respectable', and even to derive substantial incomes from ministering to the leisure economy which revolved around such activities.
*The informed consent should include statements that the embryos or fetal tissue will be used to derive human pluripotent stem cells for research that may include human transplantation research; that derived cells may be kept for many years; that the research is not intended to provide direct medical benefit to the donor; and that the donated embryos will not be transferred to a woman's uterus and will not survive the stem cell derivation process.
This result occurs when the foundation derives income from its charitable activities.
When a Swiss resident derives (1) interest or dividends that do not qualify for reduced U.S.