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  2. Roget's Thesaurus - Wikipedia

    en.wikipedia.org/wiki/Roget's_Thesaurus

    The original edition had 15,000 words and each successive edition has been larger, [3] with the most recent edition (the eighth) containing 443,000 words. [6] The book is updated regularly and each edition is heralded as a gauge to contemporary terms; but each edition keeps true to the original classifications established by Roget. [2]

  3. Glossary of chemical formulae - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_chemical_formulae

    Synonyms CAS number CAgO carbonylsilver: CCl 2 F 2: dichlorodifluoromethane freon-12: 75-71-8 CCl 4: carbon tetrachloride tetrachloromethane: 56-23-5 C(CN) 4: tetracyanomethane: 24331-09-7 CFCl 3: trichlorofluoromethane freon-11: 75-69-4 CFCl 2 CF 2 Cl: chlorotrifluoromethane freon-13: 75-72-9 CHCl 3: chloroform trichloromethane methyl ...

  4. List of minerals (synonyms) - Wikipedia

    en.wikipedia.org/wiki/List_of_minerals_(synonyms)

    Download as PDF; Printable version; In other projects ... Z. Mineral varieties ... Synonym of mannardite (discredited in 2012: ...

  5. Glossary of chemistry terms - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_chemistry_terms

    A synonym for molar mass and molecular weight, frequently used for non-molecular compounds such as ionic salts. fraction The fractionation of a mixture of liquids into its component parts, or fractions , by the process of distillation , typically by using a long vertical column attached to the distillation vessel and filled with glass beads.

  6. Thesaurus - Wikipedia

    en.wikipedia.org/wiki/Thesaurus

    A thesaurus (pl.: thesauri or thesauruses), sometimes called a synonym dictionary or dictionary of synonyms, is a reference work which arranges words by their meanings (or in simpler terms, a book where one can find different words with similar meanings to other words), [1] [2] sometimes as a hierarchy of broader and narrower terms, sometimes simply as lists of synonyms and antonyms.

  7. Lists of acronyms - Wikipedia

    en.wikipedia.org/wiki/Lists_of_acronyms

    Download as PDF; Printable version; In other projects Wikidata item; ... List of acronyms: Z; By topic. Acronyms and abbreviations in avionics; List of Aramaic acronyms;

  8. Synonym - Wikipedia

    en.wikipedia.org/wiki/Synonym

    Synonym list in cuneiform on a clay tablet, Neo-Assyrian period [1] A synonym is a word, morpheme, or phrase that means precisely or nearly the same as another word, morpheme, or phrase in a given language. [2] For example, in the English language, the words begin, start, commence, and initiate are all synonyms of one another: they are ...

  9. Glossary of physics - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_physics

    atomic number (Z) The number of protons found in the nucleus of an atom. It is most often used to classify elements within the periodic table. atomic orbital atomic packing factor atomic physics A branch of physics that studies atoms as isolated systems of electrons and an atomic nucleus. Compare nuclear physics. atomic structure atomic weight (A)