Hb

¹

Symbol, Biochemistry.

1. hemoglobin ( def ).

HB

²

abbreviation for

1. hard black: a designation for a graphite pencil of medium hardness.
2. Brinell hardness number ( def ).
3. U.S. Government. House Bill.

h.b.

³

abbreviation for

, Football.

1. halfback.

HB

¹

symbol for

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

Hb

²

symbol for

1. haemoglobin

Example Sentences

The only reference given as authority for the account is the initials H.B.

From Project Gutenberg