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erenow
erethism
erewhile
erf
erg (1)
erg (2)
ergative
ergo
ergocalciferol
ergometer
ergonomic
ergonomics
ergosterol
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ergocalciferol
er·go·cal·cif·er·ol [ ùrgō kal síffə ràwl ]


noun 
Definition:
 
biochemistry 
Same as  vitamin D2
[Mid-20th century. <ergosterol]
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