Red giant star and Red giant

Red giant star noun - A large, old, luminous star; has a relatively low surface temperature and a diameter large relative to the sun.

Red giant is a synonym for red giant star. In some cases you can use "Red giant" instead a noun phrase "Red giant star".

Red giant noun - A large, old, luminous star; has a relatively low surface temperature and a diameter large relative to the sun.

Red giant star is a synonym for red giant. You can use "Red giant star" instead a noun phrase "Red giant".