rheumatoid arthritis definition by Webster's New World
Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio. Used by arrangement with John Wiley & Sons, Inc.
a chronic disease whose cause is unknown, characterized by inflammation, pain, and swelling of the joints accompanied by spasms in adjacent muscles and often leading to deformity of the joints
rheumatoid arthritis definition by American Heritage Dictionary
nounThe American Heritage® Dictionary of the English Language, 4th edition Copyright © 2010 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
A chronic disease marked by stiffness and inflammation of the joints, weakness, loss of mobility, and deformity.
top: normal finger joint
bottom: arthritic finger joint
rheumatoid arthritis - Medical Definition
noun Abbr. RAThe American Heritage® Medical Dictionary Copyright © 2010 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
A chronic, inflammatory arthritis, commonly involving the hands and feet, characterized by joint pain, stiffness, and weakness that can lead to deformity and disability. Also called arthritis deformans.
rheumatoid arthritis - Science Definition
A chronic autoimmune disease characterized by progressive arthritis of several small or medium-sized joints, especially in the hands. Symptoms can include morning stiffness, joint swelling and weakness, and deformity and disability.