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.
An HMO or other managed care plan can contract with an IPA, which in turn contracts with independent physicians to treat members at discounted fees or on a capitation basis. The typical IPA encompasses all specialties, but an IPA can be solely for primary care or could be single specialty.