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trimethyl

Definitions

from The Century Dictionary.

  • In organic chemistry, a term noting the presence, in the molecule of a compound, of three methyl groups, CH3. It is also used as a combining form.

from the GNU version of the Collaborative International Dictionary of English.

  • (Chem.) A prefix or combining form (also used adjectively) indicating the presence of three methyl groups.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun organic chemistry (in combination) Three methyl groups in a molecule.

Etymologies

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Examples

  • According to doping historian and physician Gary Wadler, the first documented fatality from a performance-enhancing drug came in 1886, when an English cyclist died from an overdose of "trimethyl" in a French race.

    USATODAY.com - Tackling longtime issue of drugs No. 2 on sports changes wish list 2004

  • CAFFEINE, or THEINE (1.3.7 trimethyl 2.6 dioxypurin), C_8H_ {10} N_4O_2·H_2O,

    Encyclopaedia Britannica, 11th Edition, Volume 4, Part 4 "Bulgaria" to "Calgary" Various

  • C_ {5} H_ {5} N (CH_ {3}) _ {2}, and _collidine_ (trimethyl-pyridine),

    Scientific American Supplement, No. 415, December 15, 1883 Various

  • Nierenstein (see above), however, emphasises that the high molecular weight and the optical activity speak against the digallic acid formula, but in favour of this are the following points: (1) the decomposition of tannin with the formation of gallic acid; (2) the decomposition of methylotannin with the formation of di - and trimethyl esters of gallic acid; and (3) the production of diphenylmethane on distillation with zinc dust.

    Synthetic Tannins Georg Grasser

  • Its constitution is that of trimethyl-ethylene-hydrate-ammonic-hydrate, and has the following constitutional formula:

    Scientific American Supplement, No. 324, March 18, 1882 Various

  • Most commentators attributed his death to exhaustion from his endeavours in the Bordeaux to Paris race six weeks previously, though the cause of death was given as typhoid fever, but at least one historian has speculated that he was under the influence of strychnine, trimethyl or heroin in that race and that this was the real cause of death.

    WalesOnline - Home 2011

  • This facility is being built to strategically respond to global shortages of trimethyl gallium and trimethyl indium.

    unknown title 2011

  • The analysis revealed that the wasp spider pheromone is methylcitric acid trimethyl ester,

    PhysOrg.com - latest science and technology news stories PhysOrg Team 2010

  • As far as pyrophoric chemicals go, trimethyl aluminum has always been a favorite of mine. tBuLi may smoke a little from the needle tip as you transfer it, but Me

    Popular Posts Across MetaFilter scrump 2010

  • Some 2,500 contained trimethyl chloro silicane, a colourless, flammable liquid with a pungent smell, and another 500 contained hexamethyl disilazane, another colourless but smelly liquid.

    Scientific American 2010

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