Specular \Spec"u*lar\, a. [L. specularis (cf., from the same root, specula a lookout, watchtower): cf. F. sp['e]culaire. See Speculum.]

1. Having the qualities of a speculum, or mirror; having a smooth, reflecting surface; as, a specular metal; a specular surface.

2. (Med.) Of or pertaining to a speculum; conducted with the aid of a speculum; as, a specular examination.

3. Assisting sight, as a lens or the like. [Obs.]

Thy specular orb Apply to well-dissected kernels; lo! In each observe the slender threads Of first-beginning trees. --J. Philips.

4. Affording view. [R.]

``Look once more, ere we leave this specular mount.'' --Milton.

Specular iron. (Min.) See Hematite.

Source: Webster's Revised Unabridged Dictionary (1913)