plasma

noun

/ˈplæzmə/

(also plasm

/ˈplæzəm/

)

[uncountable]

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(biology生物 or medical医学) the clear liquid part of blood, in which the blood cells, etc. float血浆Topics Bodyc2
(physics物理) a gas that contains approximately equal numbers of positive and negative electric charges and is present in the sun and most stars等离子体Topics Physics and chemistryc2

Word Originearly 18th cent. (in the sense ‘mould, shape’): from late Latin, literally ‘mould’, from Greek plasma, from plassein ‘to shape’.