the act of taking back or away something that has been granted or possessed. removal from a place of deposit or investment. the discontinuance of administration or use of a drug. the syndrome of often painful physical and psychological symptoms that follows discontinuance of an addicting drug. retreat or retirement especially into a more secluded or less exposed place or position. an operation by which a military force disengages from the enemy. social or emotional detachment. a pathological retreat from objective reality (as in some schizophrenic states). RETRACTION, REVOCATION. the act of drawing someone or something back from or out of a place or position. COITUS INTERRUPTUS.