Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun h

5 senses of h

Sense 1
hydrogen, H, atomic number 1 -- (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)
       => chemical element, element -- (any of the more than 100 known substances (of which 92 occur naturally) that cannot be separated into simpler substances and that singly or in combination constitute all matter)
       => gas -- (a fluid in the gaseous state having neither independent shape nor volume and being able to expand indefinitely)

Sense 2
henry, H -- (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)
       => inductance unit -- (a measure of the property of an electric circuit by which an electromotive force is induced in it)

Sense 3
Planck's constant, h -- (the constant of proportionality relating the energy of a photon to its frequency; approximately 6.626 x 10^-34 joule-second)
       => factor of proportionality, constant of proportionality -- (the constant value of the ratio of two proportional quantities x and y; usually written y = kx, where k is the factor of proportionality)

Sense 4
H, h -- (the 8th letter of the Roman alphabet)
       => letter, letter of the alphabet, alphabetic character -- (the conventional characters of the alphabet used to represent speech; "his grandmother taught him his letters")

Sense 5
heat content, total heat, enthalpy, H -- ((thermodynamics) a thermodynamic quantity equal to the internal energy of a system plus the product of its volume and pressure; "enthalpy is the amount of energy in a system capable of doing mechanical work")
       => physical property -- (any property used to characterize matter and energy and their interactions)