a. [f. L. arcu-s bow, arc + -AL 1.] Of, pertaining to, or of the nature of an arc; arcuate.
1642. H. More, Song of Soul, II. III. III. xxxviii. An arrow … its circular course hath bended Toward the East, and in proportion due That arcuall Eastern motion did pursue.
1876. Chambers, Astron., 627. The arcual value corresponding to each.
