Ħ

Ħ (minuscule: ħ) is a letter of the Latin alphabet, derived from H with the addition of a bar. It is used in Maltese for a voiceless pharyngeal fricative consonant (corresponding to the letter "heth" of Semitic abjads). Lowercase IPA|ħ is used in the International Phonetic Alphabet for the same sound.

In quantum mechanics, an italic Unicode|ℏ represents Dirac's constant, the reduced variant of Planck's constant. In this context, it is pronounced "h-bar."

The lowercase resembles the Cyrillic letter Tshe (ћ).

Computer encoding

As a part of WGL-4, Ħ should be displayable on most computers.The codepoint U+210F is used for the Dirac constant: ℏ .