Additionally, the term electrotherapy or electromagnetic therapy has also been applied to a range of alternative medical devices and treatments. It has not been found to be effective in increasing bone healing.
The adjective form of belligerent means hostile, or inclined to fight. It can also apply to a group (e.g. belligerent nation) involved in a war. The noun belligerent is from the second definition: it is a group, or especially a country, that is actively fighting in a war.
The definition of lenient is someone who is not strict or a punishment that is not severe. An example of something that would be described as lenient is a jail sentence of one day for armed robbery. lenient