(medicine, pathology) Any illness produced by ionizing radiation with symptoms ranging from nausea to death.

(pathology) A sometimes fatal condition resulting from the formation of nitrogen bubbles in the blood and tissues, because of too rapid decompression, seen especially in deep-sea divers ascending rapidly from a dive. It is characterized by severe pains in the joints and chest, skin irritation, cramps, nausea, and paralysis.

especially, African sleeping sickness, an endemic infectious disease of humans and animals in tropical Africa, caused by a parasitic trypanosome, transmitted by the tsetse fly and characterized by fever, severe headache, joint pains and lymph node swelling in the early stages, followed by a neurological phase of extreme weakness, sleepiness, and deep coma leading to death

A feeling of nausea or dizziness caused by a disagreement between visually perceived movement and the vestibular system's sense of movement; typically resulting from travel in a vehicle such as a ship or car.

A disease characterised by a greenish tint to the skin; chlorosis. / The abnormal appetite associated with such a disease; pica.

motion sickness caused by the weightlessness of space flight

(rare, archaic) Dropsy.

Any of several viral diseases of horses

fainting or similar discomfort as a result of acupuncture

A disorder caused by the inhalation of ozone at high altitudes (e.g. in passenger aircraft), marked by fatigue and breathing difficulties.