- (noun) Printing The height of a lowercase x.
"I think the Rather memo and the Word document may differ in x-height, with the Rather x-height slightly smaller."
"Another property that typographers look for is x-height, the proportion of the height of the lower case to the height of the uppercase."
"They observe an x-height that's too low, or a bold not bold enough, or a descender on a capital J-- the downward swoop -- not sufficiently expressive to distinguish it from an I."
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