adj. Having dimensions of the order of a micrometre
the GNU version of the Collaborative International Dictionary of English
adj. Belonging to micrometry; made by the micrometer.
The Century Dictionary and Cyclopedia
Pertaining to the micrometer; made by the micrometer: as, micrometric measurements.
Word Usage
"In general, this ecoregion has mesothermic conditions with average annual temperatures of 24 – 12°C between 800 – 2,500 meters (m) altitude, and micrometric conditions with average annual temperatures of less than 12°C above 2,500 m."