Anaesthetic is a term used to describe a substance or drug that is used to reduce or eliminate sensation, especially pain, during a medical procedure. PAINKILLER, CHLOROFORM, ETHER, novocaine and NARCOTIC are all examples of anaesthetics. PAINKILLER is a 10 letter word that is used to reduce or eliminate pain. CHLOROFORM is also a 10 letter word that is used to induce unconsciousness. ETHER is a 5 letter word that is used as an anaesthetic and sedative. Novocaine is a 9 letter word that is used as a local anaesthetic. NARCOTIC is an 8 letter word that is used to reduce pain and induce sleep.