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.
Belligerent may function as either an adjective or a noun. As an adjective, it has two primary meanings, each of which corresponds to the two senses of its noun form.