Hb

¹

Symbol, Biochemistry.

1. hemoglobin.

HB

²

abbreviation

1. hard black: a designation for a graphite pencil of medium hardness.

2. Brinell hardness number.

3. U.S. Government.,  House Bill.

h.b.

³

abbreviation

Football.

1. halfback.

HB

¹

symbol

1. hard-black: denoting a medium-hard lead Compare H B

Hb

²

symbol

1. haemoglobin

Example Sentences

Low values of red blood cell count, or RBC, hemoglobin, or Hb, and hematocrit, or HCT, would indicate that the patient is suffering from anemia.

From Salon

On another were 70 bright lines between Hb and Hs.

From Project Gutenberg

The capital letter H with different Greek subscript letters, used to designate symbols of hydrogen: Ha, Hb, etc.

From Project Gutenberg