also: リュウマチ · リューマチ · リウマチス · リョーマチ
rheumatism
Medical term for rheumatic conditions, often used in the context of rheumatoid arthritis (関節リウマチ).
My grandmother has been suffering from rheumatism for many years.
Treatment for rheumatism requires consultation with a specialist.
rheumatoid arthritis
Most common modern spelling.
Variant spelling with long vowel mark.
Variant spelling reflecting the older pronunciation.
Borrowed from German 'Rheumatismus' or Dutch 'reumatiek', ultimately from Greek 'rheumatismos'.