a square unit of area, one em on each side.
a quad having such an area.Compare quad2 (def. 1).
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Question 1 of 7
What does “blatherskite” mean?
Origin of em quad
First recorded in 1870–75
Words nearby em quad
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020