button cell

noun
variants: or

button cell battery

or

button battery

Definition of button cell

  1. :  a small, round, flat battery typically used in watches or other small electronic devices (such as hearing aids) Part of the discussion at the forum centered on ways area residents can help curb mercury emissions by avoiding throwing away products that contain mercury—thermometers, button cell batteries, fluorescent lights, and the like—into the trash. — Matt Gunderson, Boston Globe, 13 Dec. 2007

There's more!

Love words? You must — there are over 200,000 words in our free online dictionary, but you are looking for one that’s only in the Merriam-Webster Unabridged Dictionary.

Start your free trial today and get unlimited access to America's largest dictionary, with:

  • More than 250,000 words that aren't in our free dictionary
  • Expanded definitions, etymologies, and usage notes
  • Advanced search features
  • Ad free!
Already a subscriber? Log in.

First Known Use of button cell

1970


Seen and Heard

What made you want to look up button cell? Please tell us where you read or heard it (including the quote, if possible).

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!