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    h - Dictionary definition and meaning for word h

    (noun) a nonmetallic univalent element that is normally a colorless and odorless highly flammable diatomic gas; the simplest and lightest and most abundant element in the universe
    Synonyms : atomic number 1 , hydrogen
    (noun) a unit of inductance in which an induced electromotive force of one volt is produced when the current is varied at the rate of one ampere per second
    Synonyms : henry
    (noun) the constant of proportionality relating the energy of a photon to its frequency; approximately 6.626 x 10^-34 joule-second
    Synonyms : planck's constant
    (noun) the 8th letter of the Roman alphabet Definition
    (noun) (thermodynamics) a thermodynamic quantity equal to the internal energy of a system plus the product of its volume and pressure
    Example Sentence
    • enthalpy is the amount of energy in a system capable of doing mechanical work
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