Varaxian LM-7
Varaxian LM-7 was supposedly a type of biogenic weapon, claimed by Quark to be in the experimental stage as of 2373. 

During his brief stint as one of Hagath's associates, Quark claimed he had obtained a supply of Varaxian LM-7 in lieu of a mutagenic retrovirus for the Regent of Palamar. In fact, the shipment was a setup to bring the Regent in contact with his nemesis, General Nassuc. ()

de:Varaxian LM-Sieben
Fictional weapons