Outrageously Funny Word Dictionary :: Protiston

👉 A protostar is a type of star that has not yet reached the point where it will become a main-sequence star. Protostars are formed when a star is born and then collapses into a black hole, or "black hole," due to its high temperature, pressure, and gravitational force. The term "protostar" refers to this initial stage of a star's life cycle before it becomes a main sequence star.

protiston