Definitions. (1) Etymology refers to the origin or derivation of a word (also known as lexical change). Adjective: etymological. (2) Etymology is the branch of linguistics concerned with the history of the forms and meanings of words. See Examples and Observations below.efinitions. (1) Etymology refers to the origin or derivation of a word (also known as lexical change). Adjective: etymological. (2) Etymology is the branch of linguistics concerned with the history of the forms and meanings of words. See Examples and Observations below.
An independent practice association (or IPA) is a US term for an association of independent physicians, or other organization that contracts with independent physicians, and provides services to managed care organizations on a negotiated per capita rate, flat retainer fee, or negotiated fee-for-service basis. Contents.
Independent practice associations (IPAs), which have represented the interest of physician practices for years, are now coming into the spotlight again for their role in helping practices join and form collaborative care groups, such as accountable care organizations (ACO), and achieve shared savings.