Mindblown: a blog about philosophy.

  • Lead molecule

    A chemical compound thought to be useful, safe, and distinctive enough that it might prove to be a good candidate for drug development.  

  • Leading zero

    A zero that precedes a decimal point, e.g., as in “levothyroxine 0.5 mg p.o. daily.” Leading zeros should always be employed when writing prescriptions for doses of drugs that are fractions of a unit. In the example above an alternative method of writing the drug dose without decimals is “levothyroxine 50 gg p.o. daily.”  

  • Lead pipe contraction

    Cataleptic condition during which limbs remain in any position in which placed.  

  • Lead monoxide

    A reddish-brown compound used to prepare lead subacetate.  

  • Acute lead encephalopathy

    A syndrome seen mostly in children, following the rapid absorption of a large amount of lead. Initially there is clumsiness, vertigo, ataxia, headache, insomnia, restlessness, and irritability. As the syndrome progresses, vomiting, agitation, confusion, convulsions, and coma will occur. A sudden and marked increase in intracranial pressure accompanies these symptoms. Sequelae include permanent damage to…

  • Lead acetate

    A lead compound that is used in solution as an astringent.  

  • Precordial lead

    A lead having one electrode placed over the precordium, the other over an indifferent region.  

  • Bipolar lead

    In electrocardiography, any lead that consists of one electrode at one body site and another at a different site. A standard limb lead, I, II, or III, is a bipolar lead.  

  • Leaching

    Extraction of a substance from a mixture by washing the mixture with a solvent in which only the desired substance is soluble.  

  • Leachate

    A contaminated liquid that leaves soil after water percolates through earth (e.g., in waste disposal sites), farmlots, or landfills.  

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