Ver″ti‐cal, n. 1. Vertical position; zenith.
2. (Math.) A vertical line, plane, or circle.
Prime vertical, Prime vertical dial. See under Prime, a.
Webster's Dictionary 1913
Ver″ti‐cal, n. 1. Vertical position; zenith.
2. (Math.) A vertical line, plane, or circle.
Prime vertical, Prime vertical dial. See under Prime, a.