Wordnet polsko-angielski 
                         (capable of being defined, limited, or explained
"definable terms"
"definable rules") 
definable 
Słownik techniczny polsko-angielski 
                        definition
Otwarty słownik polsko-angielski V.9.2007, Copyright (c) Jerzy Kazojć - 2007 r.
                        definable