hd.: Meaning and Definition of

hd.

Pronunciation: [key]
  1. hand.
  2. head.

h.d.

Pronunciation: [key]
  1. heavy duty.
  2. (in prescriptions) at bedtime
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
HCR hdbk.
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