expander

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ex·pand

 (ĭk-spănd′)
v. ex·pand·ed, ex·pand·ing, ex·pands
v.tr.
1. To increase the size, volume, quantity, or scope of; enlarge: expanded her store by adding a second room. See Synonyms at increase.
2. To express at length or in detail; enlarge on: expanded his remarks afterward.
3. To open (something) up or out; spread out: The bird expanded its wings and flew off.
4. Mathematics To write (a quantity) as a sum of terms in an extended form.
v.intr.
1. To become greater in size, volume, quantity, or scope: Air expands when heated. This critic's influence is expanding.
2. To speak or write at length or in detail: expand on a favorite topic.
3. To open up or out; unfold: The chair expands to form a daybed.

[Middle English expanden, to spread out, from Latin expandere : ex-, ex- + pandere, to spread; see petə- in Indo-European roots.]

ex·pand′a·ble adj.
ex·pand′er n.

expander

(ɪkˈspændə)
n
1. a device for exercising and developing the muscles of the body: a chest expander.
2. (Electronics) an electronic device for increasing the variations in signal amplitude in a transmission system according to a specified law. Compare compressor5, compander
Translations
expanseur

expander

nExpander m
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References in periodicals archive ?
We used a special fluid called a plasma volume expander to help to support her circulation and I took a blood sample from her.
BioTime's lead product, Hextend([R]), is a blood plasma volume expander manufactured and distributed in the U.