WordReference Random House Unabridged Dictionary of American English © 2025
ex•pli•can•dum 
(ek′spli kan′dəm),USA pronunciation n., pl. -da (-də).USA pronunciation 
            - Philosophy, Rhetorica term or statement that is to be explained, as in a philosophical discussion.
- Latin, neuter of gerund, gerundive of explicāre to explicate
- 1865–70