| lateral [`lad·ǝ·rǝl] ANATOMY At, pertaining to, or in the direction of the side; on either side of the medial vertical plane. ENGINEERING In a gas distribution or transmission system, a pipe branching away from the central, primary part of the system. MINING ENGINEERING 1. In horizon mining, a hard heading branching off a horizon along the strike of the seams. 2. A horizontal mine working. |