plasma vs state of matter

plasma and state of matter both are nouns.

Word	Noun	Adjective	Verb	Adverb
plasma	Yes	No	No	No
state of matter	Yes	No	No	No

As nouns, state of matter is a hypernym of plasma; that is, state of matter is a word with a broader meaning than plasma:

plasma: (physical chemistry) a fourth state of matter distinct from solid or liquid or gas and present in stars and fusion reactors; a gas becomes a plasma when it is heated until the atoms lose all their electrons, leaving a highly electrified collection of nuclei and free electrons
state of matter: (chemistry) the three traditional states of matter are solids (fixed shape and volume) and liquids (fixed volume and shaped by the container) and gases (filling the container)

Other hypernyms of plasma include state.

plasma (noun)	state of matter (noun)
the colorless watery fluid of the blood and lymph that contains no cells, but in which the blood cells (erythrocytes, leukocytes, and thrombocytes) are suspended	(chemistry) the three traditional states of matter are solids (fixed shape and volume) and liquids (fixed volume and shaped by the container) and gases (filling the container)
(physical chemistry) a fourth state of matter distinct from solid or liquid or gas and present in stars and fusion reactors; a gas becomes a plasma when it is heated until the atoms lose all their electrons, leaving a highly electrified collection of nuclei and free electrons
a green slightly translucent variety of chalcedony used as a gemstone