When molecules have an even charge distribution and no dipole moment then they are nonpolar molecules. CO2 is a linear molecule, so our dipoles are symmetrical; the dipoles are equal in magnitude but point in opposite directions. Generally, when dipole distribution is symmetrical there is no dipole moment.
Degenerative joint disease (medical condition): Osteoarthritis is a form of arthritis typically caused by age-related wear-and-tear. In diagnosis, it ...
Osteoarthritis; Synonyms: Degenerative arthritis, degenerative joint disease, osteoarthrosis: The formation of hard knobs at the middle finger joints (known as Bouchard's nodes) and at the distal interphalangeal joint (known as Heberden's node) are a common feature of osteoarthritis in the hands. Specialty: Rheumatology, orthopedics: Symptoms