SPEC'ULAR, adjective [Latin specularis, from speculum, a mirror, from specio, to see.] 1. Having the qualities of a mirror or looking glass; having a smooth reflecting surface; as a specular metal; a specular surface. 2. Assisting sight. [Improper and not used.] 3. Affording view.
Source: Webster's 1828 American Dictionary ↗ · public-domain · returned verbatim, no AI