<span class="searchmatch">RREF</span> (uncountable) (mathematics) Initialism of reduced row echelon form. ferr-...
See also: ferr ferr- Form of ferro- used before a vowel. English terms prefixed with ferr- ferrian transferrin <span class="searchmatch">RREF</span>...
irreffja (after a consonant, mostly also after a pause) IPA(key): /(ɪ)<span class="searchmatch">rˈrɛf</span>.fja/ rreffja (imperfect jirreffja, past participle rreffjat, verbal noun rreffjar)...