Available Definitions:
1) a. - Having the qualities of a speculum, or mirror; having a smooth, reflecting surface; as, a specular metal; a specular surface.
2) a. - Of or pertaining to a speculum; conducted with the aid of a speculum; as, a specular examination.
3) a. - Assisting sight, as a lens or the like.
4) a. - Affording view.