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expander

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noun ex·pand·er \ ik-ˈspan-dər \

Definition of expander

:one that expands; specifically :any of several colloidal substances (such as dextran) of high molecular weight used as a blood or plasma substitute for increasing the blood volume

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Recent Examples of expander from the Web

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First Known Use of expander

1862

Medical Dictionary

expander

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noun ex·pand·er \ ik-ˈspan-dər \

medical Definition of expander

:any of several colloidal substances (as dextran) of high molecular weight used as a blood or plasma substitute for increasing the blood volume — called also extender

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