noun, noun which may take the genitive case particle 'no'
serious illness; severe condition
Refers to a serious or severe medical condition, often contrasted with 軽症 (mild illness). Used both as a noun and adjectivally with の.
See also: 軽症
彼は重症で入院した。
He was hospitalized with a serious illness.
重
Patients with severe conditions are treated with priority.