variants often NiCad
: a rechargeable storage battery that has a nickel cathode and a cadmium anode

Word History

Etymology

ni(ckel) + cad(mium)

First Known Use

1955, in the meaning defined above

Time Traveler
The first known use of nicad was in 1955

Browse Nearby Words

Cite this Entry

“Nicad.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/nicad. Accessed 14 Jul. 2026.

Kids Definition

: a rechargeable battery made with nickel and cadmium electrodes
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