noun, plural ex·pli·can·da [ek-spli-kan-duh] /ˌɛk splɪˈkæn də/.
a term or statement that is to be explained, as in a philosophical discussion.
Origin of explicandum
1865–70; < Latin, neuter of gerund of explicāre to explicate
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019