| mcg | A microgram, one-millionth of a gram. (27 Sep 1997) |
|---|---|
| mcg/dl | <abbreviation> For micrograms per decilitre. (12 Jan 1998) |
| McGoon's technique | Plastic reconstruction of an incompetent mitral valve, when the incompetence is due to rupture of chordae to the posterior leaflet, by plication of the redundant leaflet. (05 Mar 2000) |
| McGoon, Dwight | <person> U.S. Surgeon, *1925. See: McGoon's technique. (05 Mar 2000) |
| mcgregor's line | <radiology> Line from posterior hard palate to base of occiput, if dens is greater than 4.5 mm most likely to be basilar invagination, easier to use than Chamberlain's line (12 Dec 1998) |