While it is not uncommon for the precise source of chest wall pain to remain unknown, some possible causes of costochondritis include: 1  Injury or trauma: Pain within the area of the chest wall may emerge as the result of a direct blow or injury to the area. Arthritis: Some evidence has suggested that symptoms of costochondritis are associated with degenerative joint conditions, such as osteoarthritis or rheumatoid arthritis.
In retail, unit price is the price for a single unit of measure of a product sold in more or less than the single unit. The unit price tells you the cost per pound, quart, or other unit of weight or volume of a food package. It is usually posted on the shelf below the food.
unit price definition, unit price meaning | English dictionary. unit price. n a price for foodstuffs, etc., stated or shown as the cost per unit, as per pound, per kilogram, per dozen, etc. n a unit of distance used in astronomy equal to the mean distance between the earth and the sun. 1 astronomical unit is equivalent to 1.495x1011 metres or about 9.3x107 miles atomic mass unit n a unit of mass used to express atomic and molecular weights that is equal to one twelfth of the mass of an atom of carbon-12.