The betavoltaic effect refers to the process of using beta particles emitted from a radioactive source to generate electricity. There are several synonyms for this effect, including betapower, betacell, and betanergy. These terms are often used interchangeably to describe the same phenomenon. The betavoltaic effect can be harnessed to power small electronic devices such as sensors, pacemakers, and hearing aids. It has potential applications in remote and harsh environments where traditional power sources may not be practical. As research in this area continues, it is likely that we will see further developments in betavoltaic technology, expanding its potential for use in various fields.