An X-chromosome with a fragile site near the end of the long arm, resulting in the appearance of an almost detached fragment.
The Truth Is In The X-FilesRead more in this article about some frequently asked questions and fun facts related to our definitions.
What The “X” In “Xbox” Stands For?No letter in the English language gets around like X. The 24th letter of the alphabet shows up everywhere, from the popular Xbox to standing in for a signature on legal documents. It represents a chromosome, signifies the multiplication process, and marks “the spot” on treasure maps. Let’s explore just a few of the uses of this versatile letter. The story behind the X in Xbox …
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.