micro
noun [ C ]
old-fashioned uk/ˈmaɪkrəʊ/ usplural micros IT
→ microcomputer
micro
adjective
uk/ˈmaɪkrəʊ/ usvery small, or at the lowest level:
The program helps to support or set up banks lending to micro enterprises and small business.
The company has a 20% share in the market for mini or micro cars.
These matters are decided at the micro level of individual firms.