12-Letter Words Containing: A,L,G,R,A,D,O

• clustered together but not coherent

• A rose of the Grandiflora class of roses created in the middle of the 20th century as backcrosses of hybrid teas and floribundas that fit neither category.

• combustion that propagates through a gas or along the surface of an explosive at a rapid rate driven by the transfer of heat

• of or relating to radiology

• Windsurfing

• of or relating to or resembling gladiators or their combat

• the activity of designing and constructing and operating railroads