The meaning of the Acronym HHb is...

HHb is

• reduced Hemoglobin (deoxyHemoglobin)

More Meanings For HHb:

• Half Human Band
• reduced Hemoglobin (deoxyHemoglobin)
• HQ and HQ Battery
• Headquarters and Headquarters Battalion

HHb is also in:

• Funnies
• Laboratory
• Military