metal, metallic element - any of several chemical elements that are usually shiny solids that conduct heat or electricity and can be formed into sheets etc.

calamine, hemimorphite - a white mineral; a common ore of zinc

candlepower unit, luminous intensity unit - a measure of luminous intensity

time deposit - a certificate of deposit from which withdrawals can be made only after advance notice or at a specified future date

certificate of indebtedness, debt instrument - a written promise to repay a debt

audio CD, audio compact disc - compact discs used to reproduce sound (voice and music)

CD-R, CD-WO, compact disc recordable, compact disc write-once - a compact disc on which you can write only once and thereafter is read-only memory

CD-ROM, compact disc read-only memory - a compact disk that is used with a computer (rather than with an audio system); a large amount of digital information can be stored and accessed but it cannot be altered by the user

optical disc, optical disk - a disk coated with plastic that can store digital data astiny pits etched in the surface; is read with a laser that scans the surface

recording - a storage device on which information (sounds or images) have been recorded

cardinal - being or denoting a numerical quantity but not order; "cardinal numbers"