H-bar

H-bar or h-bar can refer to:

• H with stroke, a Latin letter H with a doubled horizontal stroke (Ħ ħ)
  • Voiceless pharyngeal fricative, represented in IPA by ⟨ħ⟩
• Reduced Planck constant, in which the above symbol represents as a mathematical symbol, ħ = h/(2π)
• Antihydrogen, an antimatter element represented by the symbol
  H
  
• Steyr AUG HBAR, a light machine gun version of the AUG assault rifle
• Multirests, indicated in musical notation through H-bars
• HBAR cryptocurrency, for Hedera Hashgraph's public distributed ledger