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 intrude is to butt in where you aren't invited or to become involved in something where you don't belong. When you start sharing your opinion in a conversation that you overheard and were not invited to, this is an example of a time when you intrude on the conversation. intrude. intrude.