modification


modification
1. A nonhereditary change in an organism; e.g., one that is acquired from its own activity or environment. 2. A chemical or structural alteration in a molecule.
- behavior m. the systematic use of principles of conditioning and learning, especially operant or instrumental conditioning, to teach certain skills or to extinguish undesirable behaviors, attitudes, or phobias.
- chemical m. alteration in the structure of a molecule, typically a macromolecule such as a protein, by chemical means; often, the covalent addition by some reagent.
- covalent m. alteration in the structure of a macromolecule by enzymatic means, resulting in a change in the properties of that macromolecule; frequently, this type of m. is physiologically relevant.

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mod·i·fi·ca·tion .mäd-ə-fə-'kā-shən n
1) the act or result of modifying something
2) a change in an organism that is not inherited and that is caused by the influence of its environment

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mod·i·fi·ca·tion (mod″ĭ-fĭ-kaґshən) the process or result of changing the form or characteristics of an object or substance.

Medical dictionary. 2011.

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  • modification — [ mɔdifikasjɔ̃ ] n. f. • 1385; lat. modificatio 1 ♦ Didact. Manière d être accidentelle d une substance; relation du mode à la substance qu il détermine. ⇒ modalité. « Les passions ne sont que des modifications de l amour de soi » (Rousseau). 2 ♦ …   Encyclopédie Universelle

  • modification — I noun adaptation, adjustment, alteration, change, correction, exception, limitation, partial change, qualification, reservation, restriction, slight change, variation associated concepts: amendment, material modification, modification of a… …   Law dictionary

  • Modification — Mod i*fi*ca tion, n. [L. modificatio a measuring: cf. F. modification. See {Modify}.] 1. The act of modifying, or the state of being modified; a change; as, the modification of an opinion, or of a machine. Bentley. Syn: change, alteration,… …   The Collaborative International Dictionary of English

  • Modification — may refer to: Modifications of school work for students with special educational needs Modifications (genetics) Posttranslational modifications Mod (computer gaming) Modified car Body modification Grammatical modifier See also All pages with… …   Wikipedia

  • modification — UK US /ˌmɒdɪfɪˈkeɪʃən/ noun [C or U] ► a change to something, usually to improve it: »Modification of the firmware to run more programs is fairly simple. slight/minor modification »The press release is ready apart from a couple of slight… …   Financial and business terms

  • modification — Refers to a change in the terms of a filed plan. A plan may be changed by the proponent of the plan or the reorganized debtor before or after confirmation. If the modification is sought after a plan has been confirmed, the plan, as modified, must …   Glossary of Bankruptcy

  • modification — (n.) c.1500, in philosophy, from M.Fr. modification (14c.) and directly from L. modificationem (nom. modificatio) a measuring, noun of action from pp. stem of modificare (see MODIFY (Cf. modify)). Meaning alteration to an object to bring it up to …   Etymology dictionary

  • modification — Modification. s. f. v. L action par laquelle une chose est modifiée. Il signifie aussi, Restriction, limitation. On enregistra tous les Edits avec quelque modification …   Dictionnaire de l'Académie française

  • modification — modification. См. модификация. (Источник: «Англо русский толковый словарь генетических терминов». Арефьев В.А., Лисовенко Л.А., Москва: Изд во ВНИРО, 1995 г.) …   Молекулярная биология и генетика. Толковый словарь.

  • Modification — Modification. См. Модифицирование. (Источник: «Металлы и сплавы. Справочник.» Под редакцией Ю.П. Солнцева; НПО Профессионал , НПО Мир и семья ; Санкт Петербург, 2003 г.) …   Словарь металлургических терминов

  • Modification — Modification, lat., Abänderung; modificiren, abändern …   Herders Conversations-Lexikon

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