THESAURUS
amputate
abscind, annihilate, ax, ban, bar, bisect, bob, butcher, carve, chop, cleave, clip, crop, cull, cut, cut away, cut in two, cut off, cut out, dichotomize, dissever, dock, eliminate, enucleate, eradicate, except, excise, exclude, extinguish, extirpate, fissure, gash, hack, halve, hew, incise, isolate, jigsaw, knock off, lance, lop, mutilate, nip, pare, peel, pick out, prune, rend, rive, root out, rule out, saw, scissor, set apart, set aside, sever, shave, shear, slash, slice, slit, snip, split, stamp out, strike off, strip, strip off, sunder, take off, take out, tear, truncate, whittle, wipe out
ROGET THESAURUS
amputate
Subtraction
VB
subduct, subtract, deduct, deduce, bate, retrench, remove, withdraw, take from, take away, detract, garble, mutilate,
amputate, detruncate, cut off, cut away, cut out, abscind, excise, pare, thin, prune, decimate, abrade, scrape, file, geld, castrate, eliminate, diminish, curtail, deprive of, weaken.