H
1. H, hidrogen, vodik
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 [nemetalni enovalentni element, ki je običajno brez barve in vonja, zelo vnetljiv diatomik plin; najpreprostejši, najlažji in najbolj razširjen element v vesolju.]
2. H, h
the 8th letter of the Roman alphabet [osma črka rimske abecede]
3. H, henry
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 [enota induktivnosti, pri kateri se inducirana elektromotorna sila enega volta pojavi, ko se tok spremeni s hitrostjo enega ampera na sekundo]