What's "vismod" ?

To list these in the same style as other ones on the site, I suppose that we could name them "Vickers-Armstrong FV 4201 Chieftain"?
I renamed these then:
http://www.imcdb.org/vehicle.php?id=132920
http://www.imcdb.org/vehicle.php?id=89434
http://www.imcdb.org/vehicle.php?id=94279
http://www.imcdb.org/vehicle.php?id=192421
http://www.imcdb.org/vehicle.php?id=140589 (though that for this one IMDB mentions a Centurion...)
http://www.imcdb.org/vehicle.php?id=140995
http://www.imcdb.org/vehicle.php?id=222036
http://www.imcdb.org/vehicle.php?id=393661
http://www.imcdb.org/vehicle.php?id=295664