Definition of

H

  1. (noun, substance) 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
  2. (noun, quantity) 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
  3. (noun, quantity) the constant of proportionality relating the energy of a photon to its frequency; approximately 6.626 x 10^-34 joule-second
  4. (noun, communication) the 8th letter of the Roman alphabet
  5. (noun, attribute) (thermodynamics) a thermodynamic quantity equal to the internal energy of a system plus the product of its volume and pressure

via WordNet, Princeton University

Origin of the word H

  1. the pronunciation "aitch" was in O.Fr. (ache), and is from a presumed L.L. *accha (cf. It. effe, elle, emme), with the central sound approximating the value of the letter when it passed from Roman to Germanic, where it at first represented a strong, distinctly aspirated -kh- sound close to that in Scottish loch. In earlier L. the letter was ca… more

via Online Etymology Dictionary, ©2001 Douglas Harper

Words that sound like H

h2o, ha, ha-ha, hao, haw, haw-haw, hawai'i, hawaii, hay, he, hee-haw, hew, hi, hie, ho, hoe, hoo-ha, hoo-hah, hooey, howe, hoy, hoya, hua, hue

via soundex() Hash Matches

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