cold fusion definition
cold fusion. n. A hypothetical form of nuclear fusion occurring without the use of extreme temperature or pressure. coldâ² fuâ²sion. n. a hypothetical form of nuclear fusion postulated to occur at relatively low temperatures and pressures, as at room temperature and at one atmosphere.
cold fusion - nuclear fusion at or near room temperatures; claims to have discovered it are generally considered to have been mistaken. nuclear fusion, nuclear fusion reaction, fusion - a nuclear reaction in which nuclei combine to form more massive nuclei with the simultaneous release of energy.