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H

Definition

[n] a narcotic that is considered a hard drug; a highly addictive morphine derivative
[n] the 8th letter of the Roman alphabet
[n] 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
[n] the constant of proportionality relating the energy of a photon to its frequency; approximately 6.626 x 10\-34 joule-second
[n] 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

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