also: リュウマチ · リューマチ · リウマチス · リョーマチ
noun
rheumatism
Medical term for rheumatic conditions, often used in the context of rheumatoid arthritis (関節リウマチ).
祖母は長年リウマチを患っている。
My grandmother has been suffering from rheumatism for many years.
リウマチの治療には専門医の診察が必要だ。
Treatment for rheumatism requires consultation with a specialist.
Specifically rheumatoid arthritis, a common form of rheumatism.
Borrowed from German 'Rheumatismus' or Dutch 'reumatiek', ultimately from Greek 'rheumatismos'.