h
aitch
noun
The eighth letter of the English alphabet.
"H is for 'house'."
noun
The chemical symbol for the element hydrogen.
"H₂O is the formula for water."
noun
An abbreviation for 'hour', used in time or speed measurements.
"The flight takes 3h."
Thesaurus
Synonyms: Planck's constant, hydrogen, atomic number 1, total heat, heat content, enthalpy, henry