Characters with the radical 疒 ("sickness")

Nouns:

疾病 disease, illness, sickness

病 disease, illness, sickness, ailment, fault

嘔吐 vomit, sickness

疾 disease, illness, sickness, suffering, hardships

恙 illness, ailment, sickness

作嘔 sickness

瘼 distress, sickness

Adjectives:

生病 sick, ill

病 sick, ill, pathogenic

虺 sick

瘁 weary, tired, distressed, overworked, careworn, sick

痡 disabled, sick

Nouns:

痰 sputum, phlegm, spittle

唾液 saliva, sputum

"Sputum" is a mixture of saliva and mucus coughed up from the respiratory tract, typically as a result of infection or other disease and often examined microscopically to aid medical diagnosis.

English:

A disease is a particular abnormal condition that negatively affects the structure or function of all or part of an organism, and that is not due to any immediate external injury. Diseases are often known to be medical conditions that are associated with specific signs and symptoms. A disease may be caused by external factors such as pathogens or by certain internal dysfunctions. For example, internal dysfunctions of the immune system can produce a variety of different diseases, including various forms of immunodeficiency, hypersensitivity, allergies and autoimmune disorders.

Chinese:

疾病是一種特殊的異常狀況，它對生物體的全部或部分的結構或功能產生負面影響，並且不是由於任何直接的外部傷害造成的。 疾病通常被認為是與特定體徵和症狀相關的醫療狀況。 疾病可能是由外部因素（例如病原體）或某些內部功能障礙引起的。 例如，免疫系統的內部功能障礙會產生多種不同的疾病，包括各種形式的免疫缺陷、超敏反應、過敏症和自身免疫性疾病。