protostar Definition
a contracting mass of gas that represents an early stage in the formation of a star, before nucleosynthesis has begun.
Using protostar: Examples
Take a moment to familiarize yourself with how "protostar" can be used in various situations through the following examples!
Example
The protostar will eventually become a full-fledged star.
Example
Protostars are difficult to observe because they are surrounded by dense clouds of gas and dust.
Example
The formation of a protostar is a crucial step in the process of star formation.
Summary: protostar in Brief
'Protostar' [proh-tuh-stahr] refers to a contracting mass of gas that represents an early stage in the formation of a star. It is surrounded by dense clouds of gas and dust, making it difficult to observe. The formation of a protostar is a crucial step in the process of star formation.