aberrometer amperemeter amperemetre amperometer apatoraptor apertometer approperate arab-berber arbat-opera armorbearer ateammember atoremember attemperate betatempter emperoptera meprobamate motorboater obtemperate pamparaptor papparapaam paratrooper pepper-tree permeameter perpetrator peta-ampere poopetrator potamometer potato-root potoooooooo prep-to-pro pretaporter rat-tat-tat roto-rooter tartarpaper tat-tat-tat tera-ampere tete-a-tete tetra-paper tetrabamate tetraborate tetrabromo- tomatometer toptobottom tramteatret tree-topper troopmember troptometer