WordNet (r) 3.0 (2006):
hard drive n 1: computer hardware that holds and spins a magnetic or optical disk and reads and writes information on it [syn: disk drive, disc drive, hard drive, Winchester drive]The Free On-line Dictionary of Computing (30 December 2018):
hard disk drive hard drive HDD(HDD) A disk drive used to read and write hard disks. (1995-03-14)