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Hb

1
Symbol, Biochemistry.

HB

2

abbreviation for

  1. hard black: a designation for a graphite pencil of medium hardness.
  3. U.S. Government. House Bill.

h.b.

3

abbreviation for

, Football.
  1. halfback.

Hb

1

symbol for

  1. haemoglobin

HB

2

symbol for

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

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Example Sentences

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

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tortuous

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