Answers.com > Wiki Answers > Categories > Animal Life > Fish > Saltwater Fish > Rays > What does the x stand for x-ray?
Answer:
The "x" is not an abbreviation of another word. It's the "x' from algebra, which means unknown quantity.
First answer by Jdanielcross. Last edit by Jdanielcross. Contributor trust: 9 [recommend contributor recommended]. Question popularity: 1 [recommend question].

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