1 : to end (a joint tenancy) by ending one or all of the unities of time, title, possession, or interest (as by conveying one tenant's interest to another party)
2 : to separate (as a contract) into different parts (as independent obligations) in order to treat each separately
3 a : to try (criminal offenses or defendants) separately in order to avoid prejudice
b : to split (a criminal trial) into multiple trials in order to avoid prejudice
c : to try (civil claims or issues pleaded in the same case) separately
sev·er·ance [se-vrəns, -və-rens]
Source: Merriam-Webster's Dictionary of Law ©1996. Merriam-Webster, Incorporated. Published under license with Merriam-Webster, Incorporated.