heterogeneous ring compound

  • 31transition element — Chem. any element in any of the series of elements with atomic numbers 21 29, 39 47, 57 79, and 89 107, that in a given inner orbital has less than a full quota of electrons. Also called transition metal. [1920 25] * * * Any chemical element with …

    Universalium

  • 32lattice — Synonyms and related words: Kekule formula, arabesque, atomic cluster, atomic pile, basketry, basketwork, bay, bay window, benzene ring, bow window, branched chain, breeder reactor, bricks, cadre, cancellation, case, casement, casement window,… …

    Moby Thesaurus

  • 33WOMAN — This article is arranged according to the following outline: the historical perspective biblical period marriage and children women in household life economic roles educational and managerial roles religious roles women outside the household… …

    Encyclopedia of Judaism

  • 34Carbon nanotube — Not to be confused with Carbon fiber. Part of a series of articles on Nanomaterials Fullerenes …

    Wikipedia

  • 35Enzyme — Biocatalyst redirects here. For the use of natural catalysts in organic chemistry, see Biocatalysis. Human glyoxalase I. Two zinc ions that are needed for the enzyme to catalyze its reaction are shown as purp …

    Wikipedia

  • 36Dental amalgam controversy — Dental amalgam filling The dental amalgam controversy refers to the conflicting views over the use of amalgam as a filling material mainly because it contains the element mercury. The concern centers on the health effects of toxicity or allergy… …

    Wikipedia

  • 37Benzyl bromide — Chembox new Name = Benzyl bromide ImageFileL1 = Benzyl bromide skeletal.svg ImageSizeL1 = 120px ImageNameL1 = Skeletal structure of the benzyl bromide molecule ImageFileR1 = Benzyl bromide 3D vdW.png ImageSizeR1 = 100px ImageNameR1 = 3D structure …

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  • 38Pakistan — /pak euh stan , pah keuh stahn /, n. 1. Islamic Republic of, a republic in S Asia, between India and Afghanistan: formerly part of British India; known as West Pakistan from 1947 71 to distinguish it from East Pakistan (now Bangladesh).… …

    Universalium

  • 39biblical literature — Introduction       four bodies of written works: the Old Testament writings according to the Hebrew canon; intertestamental works, including the Old Testament Apocrypha; the New Testament writings; and the New Testament Apocrypha.       The Old… …

    Universalium

  • 40Disease — Illness or sickness often characterized by typical patient problems (symptoms) and physical findings (signs). Disruption sequence: The events that occur when a fetus that is developing normally is subjected to a destructive agent such as the… …

    Medical dictionary