Definition of notandum in US English:

notandum

noun

rare
  • An indication of something to be specially noted; a memorandum, note, or observation.

Origin

Mid 17th century; earliest use found in Prerogative of Man. From classical Latin notandum (neuter singular of notandus, gerundive of notāre; compare -and), short for notandum est ‘it is to be noted’, used to introduce a memorandum, e.g.

Pronunciation

notandum

/nə(ʊ)ˈtandəm/