1. (n.) The quality or state of being morbid.

2. (n.) Morbid quality; disease; sickness.

3. (n.) Amount of disease; sick rate.

abnormality acute disease affection affliction ailment allergic disease allergy atrophy bacterial disease birth defect blight cachexia cachexy cardiovascular disease chronic disease chronic ill health circulatory disease complaint complication condition congenital defect debilitation debility decrepitude defect deficiency disease deformity degenerative disease delicacy delicate health disability disease disorder distemper endemic endemic disease endocrine disease enervation epidemic disease exhaustion feebleness fragility frailty functional disease fungus disease gastrointestinal disease genetic disease handicap healthlessness hereditary disease hypochondria hypochondriasis iatrogenic disease ill health illness indisposition infectious disease infirmity invalidism invalidity languishing languishment malady malaise morbidness morbus muscular disease neurological disease nutritional disease occupational disease organic disease pandemic disease pathological condition pathology peakedness plant disease poor health protozoan disease psychosomatic disease respiratory disease rockiness secondary disease seediness sickishness sickliness sickness signs symptomatology symptomology symptoms syndrome the pip unhealthiness unsoundness unwholesomeness urogenital disease valetudinarianism virus disease wasting wasting disease weakliness worm disease