What does NAMM stand for?

What does NAMM mean?

NAMM	North American Medical Management Business » Firms
NAMM	National Association of Music Merchandisers Community » Music
NAMM	Not Available Maybe March Business » General
NAMM	Not Available Maybe May Miscellaneous » Unclassified
NAMM	National Assiociation Of Music Merchants Miscellaneous » Unclassified
NAMM	National Association of Mirror Manufacturers Business » Professional Organizations
NAMM	National Annual Musicians Meeting Miscellaneous » Unclassified