plural microwaves
1
: microwave oven
The apartment came with a microwave.
—often used before another nounmicrowave cooking [=cooking using a microwave oven]
microwave [=microwavable] popcorn
a microwave dinner
2
physics
: a very short wave of electromagnetic energy
antennas for detecting microwaves
microwave radiation
microwaves; microwaved; microwaving
: to cook or heat (food) in a microwave oven
microwave a bowl of soup
Cite this Entry
“Microwave.” Merriam-Webster.com Simple Definition, Merriam-Webster, https://www.merriam-webster.com/simple/microwave. Accessed 24 Jun. 2026.
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