Whey (unit)
Whey is a unit of weight for butter and cheese.{{Cite book|title = Encyclopaedia of Scientific Units, Weights and Measures|last = Cardarelli|first = François |publisher=Springer|year = 2003|isbn = 978-1-4471-1122-1|location = London|pages = 46}}{{Cite web|url=http://eform.isiri.gov.ir/portal/file/?147287/book-ozan1.pdf|title=فرهنگ اوزان و مقادير علمي و عملي بين المللي|access-date=19 May 2019}}