alkaloid
noun Date: circa 1831 any of numerous usually colorless, complex, and bitter organic bases (as morphine or caffeine) containing nitrogen and usually oxygen that occur especially in seed plants and are typically physiologically active • alkaloidal adjective

New Collegiate Dictionary. 2001.

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  • Alkaloid — Al ka*loid ([a^]l k[.a]*loid), Alkaloidal Al ka*loid al ([a^]l k[.a]*loid al), a. [Alkali + oid: cf. F. alcalo[ i]de.] 1. Pertaining to, resembling, or containing, alkali. [1913 Webster] 2. of or pertaining to alkaloids. [WordNet 1.5] …   The Collaborative International Dictionary of English

  • Alkaloid — Al ka*loid ([a^]l k[.a]*loid), n. (Chem.) An organic base, especially one of a class of nitrogen containing substances occurring ready formed in the tissues of plants and the bodies of animals. [1913 Webster] Note: Alkaloids all contain nitrogen …   The Collaborative International Dictionary of English

  • alkaloid — (n.) 1831, from ALKALI (Cf. alkali) (q.v.) + OID (Cf. oid). A general term applied to basic compounds of vegetable origin, bitter in taste, and having powerful effects on the animal system [Flood]. As an adjective by 1859 …   Etymology dictionary

  • alkaloid — {{/stl 13}}{{stl 8}}rz. mnż I, D. u, Mc. alkaloididzie, zwykle w lm {{/stl 8}}{{stl 7}} zasadowy związek organiczny pochodzenia roślinnego zawierający azot, zwykle nierozpuszczalny w wodzie, np. morfina, strychnina, chinina, nikotyna; odznacza… …   Langenscheidt Polski wyjaśnień

  • alkaloid — [al′kə loid΄] n. [ ALKAL(I) + OID] any of a number of heterocyclic, colorless, crystalline, bitter organic substances, such as caffeine, morphine, quinine, and strychnine, having alkaline properties and containing nitrogen: they are found in… …   English World dictionary

  • alkaloid — /al keuh loyd /, Biochem., Chem., Pharm. n. 1. any of a large class of organic, nitrogen containing ring compounds of vegetable origin and sometimes synthesized, some of which are liquid but most of which are solid, that have a bitter taste, that …   Universalium

  • Alkaloid — Strukturformel des Alkaloids Morphin Alkaloide (Wortbildung aus arabisch al qualja: „Pflanzenasche“ und griechisch oides: „ähnlich“) sind natürlich vorkommende, chemisch heterogene, meist basische, stickstoffhaltige organische Verbindungen des… …   Deutsch Wikipedia

  • Alkaloid — This article is about the chemical compounds alkaloids. For the pharmaceutical company in the Republic of Macedonia see Alkaloid (company).Alkaloids are naturally occurring chemical compounds containing basic nitrogen atoms.… …   Wikipedia

  • alkaloid — UK [ˈælkəˌlɔɪd] / US noun [countable/uncountable] Word forms alkaloid : singular alkaloid plural alkaloids chemistry a substance found in plants that is used in drugs and poisons. Morphine, nicotine, and strychnine are all alkaloids …   English dictionary

  • alkaloid — al|ka|loid1 [ ælkə,lɔıd ] noun count or uncount SCIENCE a substance found in plants that is used in drugs or as a poison alkaloid al|ka|loid 2 [ ælkə,lɔıd ] adjective AMERICAN TECHNICAL another word for ALKALINE …   Usage of the words and phrases in modern English

  • alkaloid — alkaloidas statusas T sritis chemija apibrėžtis Fiziologiškai aktyvi azoto turinti bazė, randama augaluose. atitikmenys: angl. alkaloid rus. алкалоид …   Chemijos terminų aiškinamasis žodynas

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