[field theory] In abstract algebra, adjunction is a construction in field theory, where for a given field extension E/F, subextensions between E and F are constructed. == Definition == Let E be a field extension of a field F. Given a set of elements A in the larger field E we denote by F(A) the smallest subextension which contains the eleme... Found on http://en.wikipedia.org/wiki/Adjunction_(field_theory)
Ad·junc'tion noun [ Latin adjunctio , from adjungere : confer French adjonction , and see Adjunct .] The act of joining; the thing joined or added. Found on http://www.encyclo.co.uk/webster/A/30