h, n.
(hs)
(hs)
the 8th letter of the Roman alphabet
<noun.communication>
H h
semantic pointers
member holonym
hypernym
the constant of proportionality relating the energy of a photon to its frequency; approximately 6.626 x 10^-34 joule-second
<noun.quantity>
Planck's constant h
semantic pointers
hypernym