Newguest Does "cup" mean that they are made of glass? 5882365 milliliters. And it should read 'rectangular'.
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NewguestDoes "cup" mean that they are made of glass?No; that is the volume capacity: 1 cup [US] = 236.5882365 milliliters.
NewguestDoes "cup" mean that they are made of glass?No, but Pyrex (a trademark for shatter-proof tempered glass) does.