n. 1. The state of being conformable. [ 1913 Webster ]

2. (Geol.) The parallelism of two sets of strata which are in contact. [ 1913 Webster ]

n. 1. The quality or state of being unconformable; unconformableness. [ 1913 Webster ]

2. (Geol.) Lack of parallelism between one series of strata and another, especially when due to a disturbance of the position of the earlier strata before the latter were deposited. [ 1913 Webster ]