Meaning of LATERAL in English
adj directed to the side; as, a lateral view of a thing.
2. lateral ·adj of or pertaining to the sides; as, the lateral walls of a house; the lateral branches of a tree.
3. lateral ·adj lying at, or extending toward, the side; away from the mesial plane; external;
opposed to mesial.
Webster English vocab. Английский словарь Webster. 2012