[f. as prec. + -IST.] a. One who advocates the extension of anything. b. A member of the Association for the Extension of University Teaching. colloq. A University Extension student, esp. one attending the ‘Summer Meeting’ begun in Oxford in 1888.
1864. in Webster.
1879. H. Richard, in Daily News, 11 Dec., 3/1. County suffrage extensionists.
