(morphology) An empty morph inserted between two morphemes in the process of word formation, such as English -o-, -i-.
2004, Francis Katamba, Morphology: Critical Concepts in Linguisticshttp://books.google.com/books?id=QBsKpjIh3J8C, ISBN 0415270790, page 187:An empty morph is an interfix if it fulfills all of the following three conditions (Dressier, 1985f).
(computing, information retrieval, dated) An association link, a device to group multiple words or concepts.
1959, Frank S. Wagner, Jr., A Dictionary of Documentation Termshttp://books.google.com/books?id=MlgZAAAAMAAJ, page 19:LOCANT, n. A number used in the Dyson cipher system for coding the position of substituents of carbon chain, i.e. an interfix.
Coordinate terms
Full definition of interfix
Verb
(engineering) To attach or anchor two or more parts together.
1932, Elmer G. Koch, "Collar Fastener", United States Patent 1915250 http://www.google.com/patents?id=tpZPAAAAEBAJ, page 2:Generally speaking the article is formed of two pieces which are interfixed for providing a pair of spring urged jaws...
(morphology) To insert an interfix between two morphemes.
2001, Wolfgang U. Dressler et al., "The Processing of interfixed German compounds", in Yearbook of Morphology 1999http://books.google.com/books?id=igymN2VyWB8C, ISBN 079236631X, page 185:Our goal in the construction of this task was to isolate and highlight the relationship between the interfixed and free forms of the initial constituent.