Look up: M-5

1. M15
   (from the article `nebula`) Among nebulae so far discovered, two are particularly deviant in chemical composition: one is in the globular cluster M15 and the other in the halo ...
   Found on http://www.britannica.com/eb/a-z/m/1
   
   
2. M45
   The M45 is a French ballistic missile by the Aerospatiale company. The propulsion system has three-stage solid fuel rocket motors producing hypersonic speed. The inertial control and guidance system is equipped with a Sagittaire digital computer supplied by Dassault Electronique. The missile carries...
   Found on http://www.probertencyclopaedia.com/brow
   
   
3. M5
   Macro processor, a generalisation of M4 by A. Dain, U Cincinnati, 1992. For Unix and DOS. (ftp://thor.exe.u.edu/pub/dain/m5).
   Found on http://foldoc.org/M5
   
   
4. M75
   (from the article `tank`) In the postwar era the U.S. Army led in developing fully tracked carriers with all-around armour protection. The first postwar carrier was the large ...
   Found on http://www.britannica.com/eb/a-z/m/1
   
   
5. M75
   The M75 was an American armoured personnel carrier developed after the Second World War and produced from 1952 until 1954. The M75 was powered by a Continental AO-895-4 6-cylinder petrol engine providing a top speed of 71 kmh and a range of 185 km. The M75 carried a crew of two plus ten passengers p...
   Found on http://www.probertencyclopaedia.com/brow