noun
chronic phase; chronic stage
Medical term referring to the long-term phase of a disease or condition, as opposed to the acute phase (急性期).
See also: 急性期
患者は慢性期に入り、症状が安定している。
The patient has entered the chronic phase and the symptoms are stable.
慢性期の治療にはリハビリが重要だ。
Rehabilitation is important in the treatment of the chronic stage.
Compound of 慢性 (chronic) + 期 (period, phase).