noun
: a form of dark matter theorized to consist of slow-moving elementary particles and to have contributed to the formation of large-scale structure (as galaxies) in the early universe
noun
: a form of dark matter theorized to consist of slow-moving elementary particles and to have contributed to the formation of large-scale structure (as galaxies) in the early universe
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012