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

(idiomatic) Bored to the point of weariness. / (idiomatic) Annoyed or frustrated with something or someone, to the point of losing one's temper or patience.

motion sickness caused by the weightlessness of space flight

Alternative spelling of seasickness

(medicine) A pathological condition caused by oxygen deficiency at high altitudes; symptoms include shortness of breath, nausea, and nosebleed.

(medicine) Early morning nausea and vomiting as a symptom of pregnancy.

Alternative form of junk sick

(slang) Experiencing the nausea sometimes suffered by the user of a narcotic the following day, or after the effects of the drug begin to wear off, often with flulike symptoms.

(simile) Very ill.

(Canada, US) Used other than figuratively or idiomatically: see get, sick. / (euphemistic) To vomit.