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Pronunciation of 

Rh factor

view main entry for Rh factornoun [singular] medical  /ˌɑr ˈeɪtʃ ˌfæktər/
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charticle

a news article that consists of a chart … and only has a small amount of text

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electron

a part of an atom that moves around the nucleus (=centre) and has a negative electrical charge

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an event that should never occur in a healthcare setting …

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