Word: plasmaspheres
Part of speech: Noun
Syllables: plas
mas
pheres
Definition: Plural of plasmasphere;  which is defined by an order of magnitude drop in plasma density
Morphemes:
Affix: plasma
Language: en
PoS: Noun
Meaning: Blood plasma, free of suspended cells, used in transfusions
Affix: -sphere
Language: en
PoS: Suffix
Meaning: Used to form nouns indicating a sphere of x dimensions
Affix: -s
Language: en
PoS: Suffix
Meaning: Used to form regular plurals of nouns.