AAA battery
noun
: a small battery that is typically used in small electronic devices and that is standardized at 44 mm in length and 10.5 mm in diameter
called also AAA, AAA cell, triple-A, triple-A battery
Examples of AAA battery in a Sentence
Recent Examples on the Web
Make sure to include a roll of film and a AAA battery so whoever wins can start snapping photos right away.
—
Nena Farrell, Wired News, 20 Oct. 2025
Melissa & Doug Doctor Dress-Up Set This realistic doctor’s coat has everything your aspiring doctor needs to give their patients a check-up, including a face mask, a stethoscope with sound effects (AAA batteries not included), thermometer, syringe, reflex hammer, and reusable name tag.
—Katrina Cossey, Parents, 1 Oct. 2025
The set includes one small and one medium ghost, illuminated with hidden LED bulbs that are powered by AAA batteries.
—Maggie Horton, PEOPLE, 13 Sep. 2025
Unlike the vast majority of premium wireless gaming mice on the market, which have built-in batteries, the wireless Gen 2 uses a pair of AAA batteries (included with your purchase), which are rated for up to 400 hours of use.
—PC Magazine, 26 July 2025
See All Example Sentences for AAA battery
Examples are automatically compiled from online sources to
show current usage.
Read More
Opinions expressed in the examples do not represent those of Merriam-Webster or its editors.
Send us feedback.
Nena Farrell, Wired News, 20 Oct. 2025
Melissa & Doug Doctor Dress-Up Set This realistic doctor’s coat has everything your aspiring doctor needs to give their patients a check-up, including a face mask, a stethoscope with sound effects (AAA batteries not included), thermometer, syringe, reflex hammer, and reusable name tag.
—Katrina Cossey, Parents, 1 Oct. 2025
The set includes one small and one medium ghost, illuminated with hidden LED bulbs that are powered by AAA batteries.
—Maggie Horton, PEOPLE, 13 Sep. 2025
Unlike the vast majority of premium wireless gaming mice on the market, which have built-in batteries, the wireless Gen 2 uses a pair of AAA batteries (included with your purchase), which are rated for up to 400 hours of use.
—PC Magazine, 26 July 2025
See All Example Sentences for AAA battery
Cite this Entry
“AAA battery.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/AAA%20battery. Accessed 31 Oct. 2025.
Copy CitationLove words? Need even more definitions?
Merriam-Webster unabridged
Share