{ Gir″a‐soleGir″a‐sol } (?), n. [It. girasole, or F. girasol, fr. L. gyrare to turn around + sol sun.]
1. (Bot.) See Heliotrope.
2. (Min.) A variety of opal which is usually milk white, bluish white, or sky blue; but in a bright light it reflects a reddish color.