Micro-
Prefix derived from the Greek "mikros" meaning small. Examples of the many biomedical terms containing "micro-" include the following: microangiopathy, microcephaly, microcystic (as in microcystic corneal dystrophy), microhematuria, microorchidism, micropenis, microphallus, micropigmentation , microscope, microscopy (as in electron microscopy), and microsomia. In premed and medical student lingo, micro is short for microbiology (or microscopic anatomy, i.e. histology). The opposite of micro- is macro-.
* * *
Medical dictionary.
2011.