ärˈthrīdə̇s, ȧˈ-, -ītə̇s noun
( plural ar·thrit·i·des -ˈthrid.əˌdēz, -itə-)
Etymology: Latin, from Greek, from arthron joint + -itis
: inflammation of one or more joints due to infectious, metabolic, or constitutional causes — compare degenerative arthritis , gout , rheumatoid arthritis