Our online medical glossary of medical terms and definitions includes definitions for terms related to treatment, and general medicine
UNCONFORMITY
1. Want of conformity; incongruity; inconsistency.
2. Want of parallelism between strata in contact.
With some authors unconformity is equivalent to unconformability; but it is often used more broadly, for example, to include the case when the parallelism of strata once conformable has been disturbed by faulting and the like.
Source: Websters Vocabulary