mi·cro
ˈmī-(ˌ)krō 
1
: very small
especially
: microscopic
2
: involving minute quantities or variations
Examples of micro in a Sentence
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Thomas Waller, Footwear News, 10 Oct. 2025
Best Prime Day micro bag deals Micro bags are just the right size for your phone, keys, and lip gloss.
—Malia Griggs, Glamour, 8 Oct. 2025
New Atlas, 12 Oct. 2025
Macros include carbs, protein, and fat, while micros include vitamins and minerals.
—Jillian Kubala, Health, 11 Oct. 2025
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Adjective
One micro trend was the addition of jewels and sparkle, seen on Swarovski and Kendra Scott eyewear.
—Thomas Waller, Footwear News, 10 Oct. 2025
Best Prime Day micro bag deals Micro bags are just the right size for your phone, keys, and lip gloss.
—Malia Griggs, Glamour, 8 Oct. 2025
Noun
The micro-weave of aramid disperses oils, prevents slipping, and maintains consistent grip over time.
—New Atlas, 12 Oct. 2025
Macros include carbs, protein, and fat, while micros include vitamins and minerals.
—Jillian Kubala, Health, 11 Oct. 2025
See All Example Sentences for micro
Cite this Entry
“Micro.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/micro. Accessed 19 Oct. 2025.
Copy CitationMedical Definition
micro
adjective
mi·cro
ˈmī-(ˌ)krō
1
: very small
especially
: microscopic
2
involving minute quantities or variations
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