Definition of derivation in English:
derivation
Syllabification: der·i·va·tionPronunciation: /ˌderəˈvāSH(ə)n
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noun
1The obtaining or developing of something from a source or origin: the derivation of scientific laws from observation
More example sentences
 Although not a definitive indicator, the lack of abrasion is consistent with derivation from nearby sources.
 This suggests derivation from a similar source and/or a similar depositional age.
 But notice that this just pushes the assumption back, and eventually one will reach the beginning of the original derivation.
1.1The formation of a word from another word or from a root in the same or another language.
More example sentences
 Often, he explains the linguistic derivation of a word or idiom.
 These differences relate to the historical derivation of the words in question: whether they were acquired directly from Latin or through French.
 On this account, the word based theories posit that lexical relations in Semitic languages are linked to derivations involving lexemes and morphemes.
origination, beginning, foundation, basis, cause;
development, evolution
1.2Origin; extraction: music of primarily Turkish derivation
More example sentences
 He is of mainly Dutch derivation, with some Japanese ancestry, as well.
 The argument conveniently ignores the political reality of devolution, ie that we are Europeans through contribution, not derivation.
 One young man whose derivation, I found out, was by way of Pakistan, had to leave in the middle of the semester.
1.3Something derived; a derivative: the derivation “sheepish” has six definitions
More example sentences
 Essentially a derivation of sherry, the recipe is attributed to the original French monks who settled at the Abbey in the 1880s.
2 Linguistics In generative grammar, the set of stages that link the abstract underlying structure of an expression to its surface form.
More example sentences
 From a metalinguistic framework, a first distinction may be proposed between tasks that involve morphological derivation in sentence completion and tasks that place a heavier load on explicit segmentation.
 Compared with delayed dyslexies, phonological dyslexies were impaired in the suffix deletion task but not in derivation in a sentence context.
 But there must be some logical explanation and derivation, that fits with the current definition, mustn't there?
3 Mathematics The process of deducing a new formula, theorem, etc., from previously accepted statements.
More example sentences
 But here is an elementary (no calculus) derivation that pulls together several useful but mostly disregarded in the precollege mathematics ideas.
 Sometimes when going through a long algebraic derivation, I will ask each student in turn: ‘Clara, what is the next step in solving for [lambda]?’
 His derivation of the estimates is a tour de force and the applications in algebraic geometry are beautiful.
3.1A sequence of statements showing that a formula, theorem, etc., is a consequence of previously accepted statements.
More example sentences
 The work is a survey of Kerala mathematics and, very unusually for an Indian mathematical text, it contains proofs of the theorems and gives derivations of the rules it contains.
 After Arbogast died in 1803, Français inherited his mathematical papers and continued to work on the calculus of derivations.
 Here is a mathematical derivation of the two values.
Derivatives

derivational
 More example sentences
 However, the assumptions that are the ‘building blocks ‘of the derivational dating methods of the physical world are severely cracked.’
 Good examples of the former are the special issues in journals on experimental studies of inflectional, morphemic compounding, and derivational morphology in relation to learning to read and spell.
 Presumably, children would rely on the consistent phonemetographeme conversion rules to spell regular words whereas they might rely on derivational relations to spell morphological words.
Pronunciation: /SHənl/
adjectiveDefinition of derivation in:
 The British & World English dictionary
 The English Synonyms
 The US English Synonyms