ab·scis·sio in·fi·ni·ti \abˈsisēˌōˌinfəˈnīˌtī\noun (pluralabscissi·o·nes infiniti \-ˌsisēˈōˌnēˌzin-\) Etymology: New Latin, abscission of that which is infinite : a logical process using successive exclusions of the inapplicable for the purpose of determining a true conclusion or the classification of a subject — compare method of exclusion