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.
Physicians join together as an IPA. The IPA negotiates physicians' contracts with HMOs. An IPA can make contracts with multiple HMOs, while the physicians maintain independent medical practices, separate from all other IPA physicians' practices. IPA physicians also treat other patients not insured by HMOs.