TERMIUM Plus^®

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The sterol lipids are a group of compounds that carry a core signature of four fused rings... and are subdivided into cholesterol and its derivatives, steroids, secosteroids, bile acids and their derivatives, and others...  3, record 1, English, - sterol%20lipid

Record 1,  Textual support,  French

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Les stérols sont tous issus d'une structure commune : l'unité cyclopentanophénantrène [...] Il s'agit d'un tétracycle, responsable du caractère hydrophobe des stérols. Les stérols sont les principaux lipides non polaires qui constituent les membranes cellulaires. Parmi les stérols, plusieurs sous-classes existent : les stérols libres, les stérols estérifiés, les oxystérols, les stéroïdes, les vitamines D et les acides biliaires.  2, record 1, French, - st%C3%A9rol

Record 1,  Textual support,  Spanish

Record 2,  Textual support,  English

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Any organic heterotricyclic compound constructed from fused thiophene, triazole and diazepine rings.  2, record 2, English, - thienotriazolodiazepine

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Thienotriazolodiazepines are analogs of benzodiazepines, which have been used in the clinic for many years as anticonvulsant, sedative, and anxiolytic medications.  3, record 2, English, - thienotriazolodiazepine

Record 2,  Textual support,  French

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Composé organique formé par la fusion d'un cycle thiophène, d'un cycle triazole et d'un cycle diazépine.  2, record 2, French, - thi%C3%A9notriazolodiaz%C3%A9pine

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Record 3,  Textual support,  English

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One of a group of plant hormones that consist of five fused rings and that stimulate the growth of leaves and shoots.  2, record 3, English, - gibberellin

Record 3,  Textual support,  French

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Hormone naturelle végétale de nature diterpénique.  2, record 3, French, - gibb%C3%A9relline

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Les effets des gibbérellines sont variés. Elles ont entre autres un effet sur l'allongement des entre-nœuds par prolifération et élongation des cellules de la tige, sur la formation de la tige florale des bisannuelles et ont une action sur la croissance de certaines feuilles.  3, record 3, French, - gibb%C3%A9relline

Record 3,  Textual support,  Spanish

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Clase de reguladores del crecimiento de las plantas que intervienen en la elongación del tallo, floración, tamaño del fruto y de la hoja, germinación, vernalización y otros procesos fisiológicos  2, record 3, Spanish, - giberelina

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A pale yellow very high-melting fluorescent hydrocarbon... having a molecular structure like a crown with six benzene rings fused together.  2, record 4, English, - coronene

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It is important for understanding origin and evolution of planets to investigate a stable form of carbon in space and its reservoir. Now it has been proposed that the following two organic compounds are ... candidates for the organic matters in space. One is coronene ... one of PAH (Polycyclic Aromatic Hydrocarbon), the other is kerogen.  3, record 4, English, - coronene

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Chemical formula : C₂₄H₁₂  4, record 4, English, - coronene

Record 4,  Textual support,  French

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Impact d'électrons sur des fullerènes et sur des grosses molécules carbonées d'intérêt astrophysique. [...] Spectroscopie des ions par temps de vol. [...] Ce travail se prolonge par l'étude de grosses molécules carbonées polycycliques aromatiques (PAH), soit de symétrie plane (anthracène, coronène...) soit incurvées (décacyclène...) pour déterminer l'origine des spécificités des fullerènes (symétrie, forme cage, taille).  3, record 4, French, - coron%C3%A8ne

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Formule chimique : C₂₄H₁₂  4, record 4, French, - coron%C3%A8ne

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Record 5,  Textual support,  English

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(C subscript 13)(H subscript 9)(N). A typical member of a group of organic heterocyclic compounds containing benzene rings fused to the 2, 3 and 5, 6 positions of pyridine; derivatives include dyes and medicines.  2, record 5, English, - acridine

Record 5,  Textual support,  French

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Composé faiblement basique, de formule (C indice 13) (H indice 9) (N), que sa structure rapproche de celle de l'anthracène.  2, record 5, French, - acridine

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l'acridine est une dibenzopyridine. Elle se rencontre dans les goudrons de houille et présente en solution, une fluorescence bleue. Elle est utilisée comme mutagène expérimental en analyse génétique et permet l'addition (insertion) ou l'enlèvement (dététion) d'un nucléotide dans une chaîne polynucléotidique.  2, record 5, French, - acridine

Record 5,  Textual support,  Spanish

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Pequeñas agujas o escamas incoloras. Soluble en alcohol, éter o sulfuro de carbono y escasamente soluble en agua caliente. Moderadamente tóxica por ingestión e inhalación. Irritante para piel y mucosas.  2, record 5, Spanish, - acridina

Record 6,  Textual support,  English

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An organic compound of the aromatic class.  2, record 6, English, - aromatic%20compound

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Any of a large class of organic compounds including benzene and compounds that resemble benzene in chemical properties.  3, record 6, English, - aromatic%20compound

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Aromatic compounds contain unusually stable ring structures, often made up of six carbon atoms arranged hexagonally. Some of the compounds, however, have rings with more or fewer atoms, not necessarily all carbon. Furan, for example, has a ring with four atoms of carbon and one of oxygen. Also, two or more rings can be fused, as in naphthalene. The characteristic properties of the class, notably the stability of the compounds, derive from the fact that aromatic rings permit the sharing of some electrons by all the atoms of the ring, which increases the strength of the bonds.  3, record 6, English, - aromatic%20compound

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"Aromatic," as a noun, is often used in the plural form to designate the group of compounds.  4, record 6, English, - aromatic%20compound

Record 6,  Textual support,  French

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aromatique : [...] composé présentant un ensemble de propriétés physiques et chimiques comparables à celles du benzène [...]  2, record 6, French, - compos%C3%A9%20aromatique

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La demande d'aromatiques, essentiellement benzène, toluène et xylène, comme matières premières de la chimie, est satisfaite à 92 % par le pétrole et à 8 % par le charbon.  2, record 6, French, - compos%C3%A9%20aromatique

Record 6,  Textual support,  Spanish

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Compuesto químico que posee aromaticidad.  2, record 6, Spanish, - compuesto%20arom%C3%A1tico

Record 7,  Textual support,  English

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Isomerism of fused rings : In polycyclic compounds, the atoms or groups attached at saturated bridgeheads common to two rings are shown by their symbol so as to indicate the stereochemistry resulting from the way that the cycles are fused.  2, record 7, English, - fused%20rings

Record 7,  Textual support,  French

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En nomenclature, trois types de fusion sont connus : L'ortho-fusion et l'ortho- et péri-fusion, formant des systèmes polycycliques fusionnés ayant deux ou plus atomes en commun, et la spiro-fusion, qui engendre des composés spiraniques ayant un seul atome en commun. Il faut ainsi préciser la nature de la fusion, par exemple : composé hydroxylé à anneaux ortho-fusionnés, composé hydroxylé à anneaux ortho- et péri-fusionnés, ou composé hydroxylé à anneaux spiro-fusionnés.  1, record 7, French, - cycles%20fusionn%C3%A9s

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Dans l'observation qui précède, il est à noter que les préfixes «ortho» et «péri» s'écrivent en italique.  1, record 7, French, - cycles%20fusionn%C3%A9s

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Record 8,  Textual support,  English

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The resonance-stabilized ring characteristic of aromatic organic compounds.  1, record 8, English, - aromatic%20ring

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Most aromatic rings are planar six-membered rings(e. g., benzene or pyridine) or planar five-membered rings containing a hetero atom with an unshared electron pair(e. g,, furan or pyrrole). Although aromatic rings are unsaturated, they do not undergo the addition reactions characteristic of alkenes; instead, aromatic compounds are characterized by substitution reactions. Many organic compounds, such as naphthalene and purine, contain several aromatic rings fused together.  1, record 8, English, - aromatic%20ring

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It appears that human, because of the course of evolution, do not have biochemical ability to synthesize the benzene ring. As a result, phenylalanine and tryptophan derivatives are essential in the human diet.  2, record 8, English, - aromatic%20ring

Record 8,  Textual support,  French

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La famille [...] des aminoacides non polaires [...] contient cinq aminoacides ayant une chaîne hydrocarbonée aliphatique: alanine, leucine, isoleucine, valine et proline, deux possédant des noyaux aromatiques : phénylalanine et tryptophane, et un contenant du soufre : la méthionine. Tous ces aminoacides sont moins solubles dans l'eau que ne le sont les aminoacides polaires.  1, record 8, French, - noyau%20aromatique

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Record 9,  Textual support,  English

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Two or more cyclic systems(single rings or fused systems) which are directly joined to each other by double or single bonds are named ring assemblies when the number of such direct ring junctions is one less than the number of cyclic systems involved.  1, record 9, English, - ring%20assembly

Record 9,  Textual support,  French

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Les systèmes cycliques, condensés ou non, liés entre eux par des jonctions (simples ou doubles) dont le nombre total est inférieur d'une unité au nombre des systèmes cycliques impliqués, constituent des assemblages de cycles. Cette dénomination les distingue des systèmes polycycliques condensés.  1, record 9, French, - assemblage%20de%20cycles

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