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

(transitive) To make ill. / (intransitive) To become ill. / (transitive) To fill with disgust or abhorrence. / (sports) To lower the standing of. / (intransitive) To be filled with disgust or abhorrence.

present participle of sicken

Causing sickness or disgust. / (LGBT slang) Amazing, fantastic.

The act of making somebody sick.

Frequently ill or in poor health. / Not in good health; (somewhat) sick. / (of a plant) Characterized by poor or unhealthy growth. / Appearing ill, infirm or unhealthy; giving the appearance of illness.

(transitive, archaic, literary) To make (something) sickly. / (intransitive, rare) To become sickly.

In a sick manner; in a way that reflects or causes sickness.

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.