Preoccupation with the potential sexual infidelity of one’s partner. The sufferer, most often a man, becomes convinced that his partner is having an affair. Morbid jealousy is usually caused by a personality disorder, depression, or paranoia, but may also occur in those suffering from alcohol dependence or organic brain syndrome (see brain syndrome, organic).
Any departure, subjective or objective, from a state of physiological or psychological well-being. In this sense, sickness, illness and morbid conditions are similarly defined and synonymous.... morbidity
Conditions that exist at the same time as the primary condition in the same patient (e.g. hypertension is a co-morbidity of many conditions, such as diabetes, ischemic heart disease, end-stage renal disease, etc.). Two or more conditions may interact in such a way as to prolong a stay in hospital or hinder successful rehabilitation.... co-morbid condition