\Scho"li*um\, n.; pl. L. {Scholia}, E. {Scholiums}.
[NL., fr. Gr. ?, fr. ?. See {School}.]
1. A marginal annotation; an explanatory remark or comment;
   specifically, an explanatory comment on the text of a
   classic author by an early grammarian.
2. A remark or observation subjoined to a demonstration or a
   train of reasoning.