MORBIDITY

n. unhealthiness; state of being diseased; gloominess, depression; state of being gruesome or repugnant

In medicine, epidemiology and actuarial science, the term morbidity can refer tothe state of being diseased (from Latin morbidus: sick, unhealthy),the degree or severity of a disease,the prevalence of a disease: the total number of cases in a particular population at a particular point in time,the incidence of a disease: the number of new cases in a particular population during a particular time interval.disability irrespective of cause (e.g., disability caused by accidents).
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Noun
1. the ratio of deaths in an area to the population of that area; expressed per 1000 per year
(synonym) deathrate, death rate, mortality, mortality rate, fatality rate
(hypernym) rate
(hyponym) infant deathrate, infant mortality, infant mortality rate
2. the relative incidence of a particular disease
(hypernym) incidence, relative incidence
3. the quality of being unhealthful and generally bad for you
(synonym) unwholesomeness, morbidness
(hypernym) quality
(hyponym) harmfulness, noisomeness, noxiousness

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

(n.)
Morbid quality; disease; sickness.
  

(n.)
Amount of disease; sick rate.
  

Illness, disease.