protostar Hear it!

protostar Definition

proto·star (prōt′ō stär′)

noun

in some cosmological theories, any of the millions of swirling clouds of dust and hydrogen gas that form within a protogalaxy and eventually evolve into thermonuclear stars

protostar Usage Examples

Converse of object

  • form: The center of this fragmented gas cloud evolves quickly ( over the next 100,000 years ) to form a protostar.
  • call: The object that is formed at the center of the collapsing cloud and which will become a star is called a protostar.

Adjective modifier

low: Both high and low mass protostars often possess powerful jets and outflows.