exterminate, v. 1. annihilate, obliterate, eradicate, erase, blot or wipe out, SI. mop up, efface, eliminate, extirpate, destroy totally, decimate, liquidate, massacre, kill off, slaughter, butcher, mow down; undo, cut off, put an end to, abolish, extinguish, quench, quash, overthrow; raze, level, tear to the ground, ravage, gut, blast, devastate, ruin, despoil, desolate, demolish, lay in ruins; kill, murder, slay, cut down, put to death, execute, do to death, put to the sword, destroy, assassinate.
2. uproot, root out, deracinate, Obs. overruncate.
external, adj. exterior, outside, outer. See - exterior (def 1).
extinct, adj. 1. non-existing, died out, dead, defunct, gone without a survivor, disappeared from the face of the earth; ended, terminated, finished; gone, lost, evaporated, vanished, departed, abolished; annihilated, wiped out, exterminated, eradicated, extirpated, liquidated.
2. obsolete, out-moded, pass£, antiquated, out-ofdate.
3. quenched, extinguished, burned out; put out, snuffed out, reduced to ashes.
extinction, n. 1. coming to an end, terminating, dying out; death, nonexistence, nonsurvival.
2. annihilation, extermination, eradication, extirpation, obliteration, destruction,
extinguish, v. 1. snuff out, put out, quench, Inf. douse, Inf. dinch, blow out, (of a light) turn off, (of a cigar, cigarette) SI. snub out; smother, suffocate, stifle, damp, choke.
2. extirpate, obliterate, expunge, eradicate, exterminate, annihilate, discreate, abolish; blot out, strike out, stamp out, crush out; devastate, destroy, demolish, ravage, desolate, ruin, Dial, ruinate, raze; efface, wipe out, do away with, remove, liquidate, purge, leave no vestige or trace of; eliminate, put an end to, get rid of, bring to an end, dispose of; terminate, dissolve, check; quash, quell, suppress, squelch, crush, vanquish, subdue, put down, nip, nip in the bud, Inf. put the kibosh on; overthrow, overturn, overwhelm, subvert, topple, defeat, conquer.
3. kill, kill off, slay, slaughter; murder, finish, finish off, SI. do in, SI. zap, sacrifice, mow down.
4. erase, rub out, scrape out, scratch out; wash out, sponge out; delete, Print, dele, blue-pencil, edit, edit out; cross out, x out, cancel, black out, mark off.
5. obscure, eclipse, darken, throw into the shade, overshadow, Inf. show up, outdo.
6. Law. annul, nullify, disannul, declare null and void, render null and void, void, avoid, elide; quash, invalidate, vitiate, vacate, disenact, disestablish; cancel, discharge; suspend, cease, nol-pros, stop, end, discontinue, break off.
extirpate, v. 1. obliterate, exterminate, expunge, eradicate, annihilate, discreate, abolish; blot out, strike out, stamp out, snuff out, crush out; devastate, destroy, demolish, ravage, desolate, ruin, Dial, ruinate, raze; efface, wipe out, do away with, remove, liquidate, purge, leave no vestige or trace of; eliminate, put an end to, get rid of, extinguish, bring to an end, dispose of; terminate, dissolve, check; quash, quell, squelch, crush, vanquish, subdue, squash; overthrow, overwhelm, overturn, subvert, topple, defeat, conquer.
2. uproot, unroot, pull out by the roots, pull up, pluck up, root out, outroot, deracinate; pull out, draw out, tear out, take out, extract; excise, cut, cut out; unearth, excavate, dig up or out, grub up or out; weed out, rake out.
extirpation, n. 1. obliteration, extermination, ex-punction, eradication, annihilation, discreation, abolition, abolishment; devastation, total destruction, demolition, ravagement, desolation, ruin, ruination; ef-facement, wipe out, removal, liquidation, purgation, leaving no vestige or trace of; elimination, putting an end to, extinguishment, extinction, bringing to an end, disposing of; termination, dissolution, check; quashing, suppression, squelching, crushing, vanquishment, squashing; overthrow, overturn, overwhelming, subversion, defeat, conquering.