noun \ˌäs-tē-ō-är-ˈthrī-təs\

medical : a disease that causes the joints to become very painful and stiff

Full Definition of OSTEOARTHRITIS

:  arthritis marked by degeneration of the cartilage and bone of joints
os·te·o·ar·thrit·ic \-ˈthri-tik\ adjective


New Latin
First Known Use: 1878


noun \ˌäs-tē-ō-är-ˈthrīt-əs\   (Medical Dictionary)
plural os·teo·ar·thrit·i·des \-ˈthrit-ə-ˌdēz\

Medical Definition of OSTEOARTHRITIS

: arthritis typically with onset during middle or old age that is characterized by degenerative and sometimes hypertrophic changes in the bone and cartilage of one or more joints and a progressive wearing down of apposing joint surfaces with consequent distortion of joint position and is marked symptomatically especially by pain, swelling, and stiffness—abbreviation OA; called also degenerative arthritis, degenerative joint disease, hypertrophic arthritis; compare rheumatoid arthritis
os·teo·ar·thrit·ic \-ˈthrit-ik\ adjective


noun    (Concise Encyclopedia)

Most common joint disorder, afflicting over 80% of those who reach age 70. It does not involve excessive inflammation and may have no symptoms, especially at first. Cartilage softens and wears away, and bone grows in its place, distorting the joint's surface and causing pain, stiffness, and limited movement, usually in weight-bearing joints (vertebrae, knees, hips). Treatment may include analgesics, rest, weight loss, corticosteroids, and/or physical medicine and rehabilitation or an exercise program. Hip or knee replacement or surgical removal of unhealthy tissue may be needed.


osteoarthritis or osteoarthrosis or degenerative joint disease


Next Word in the Dictionary: osteoblast
Previous Word in the Dictionary: ostentive
All Words Near: osteoarthritis

Seen & Heard

What made you want to look up osteoarthritis? Please tell us where you read or heard it (including the quote, if possible).