- A combining form.
- A millionth part of; as, microfarad, microohm, micrometer.
- Small, little, trivial, slight; as, microcosm, microscope.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). micr-. Retrieved September 21, 2026, from http://smartdefine.org/micr-/definitions/2032518 |
| Chicago | Webster's. 2011. "micr-" http://smartdefine.org/micr-/definitions/2032518 (accessed September 21, 2026). |
| Harvard | Webster's 2011, micr-, Smart Define, viewed 21 September, 2026, <http://smartdefine.org/micr-/definitions/2032518>. |
| MLA | Webster's. "micr-" 27 May 2011. Web. 21 September 2026. <http://smartdefine.org/micr-/definitions/2032518> |