any chromosome belonging to the normal set characteristic of a given species.
What the “x” in “Xbox” stands for, plus when did “x” start to mean “the unknown?”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 …
Can you see the difference between those symbols?Though one of the least-used letters, X has a remarkable way of getting attention. We’ve already looked at the varied uses of X: Gen X, Xbox, XOXO, the X chromosome. British dramatist Ben Jonson wanted to remove the 24th letter from the alphabet, saying, that x “is rather an abbreviation, or way of short writing, than a letter: for it hath the sound of c and s, or k and s.” …
Origin of A chromosome
First recorded in 1975–80
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019