1. Compounds capable of relieving pain without the loss of consciousness or without producing anesthesia: "The dentist injected Randal with a powerful analgesic so she could drill the decayed tooth without causing the him any pain."
2. Those drugs that primarily relieve pain without blocking nerve-impulse conduction or markedly altering sensory functions: "The new analgesic which the doctor used was exceptional in terms of relieving or reducing Desiree's severe pain."

1. Relieving pain; an agent that alleviates pain without causing loss of consciousness.
2. A compound capable of producing analgesia, i.e., one that relieves pain by altering perception of pain stimuli without producing anesthesia or loss of consciousness; also, analgetic.
3. Characterized by reduced response to painful stimuli; also, antalgic.