Y chromosome

Etymology
Named by Nettie Stevens in 1905 using the next letter in sequence following the naming by Hermann Henking in 1890 of the X chromosome. The brief resemblance in the appearance of the X and Y chromosomes to the letters "X" and "Y" respectively during cell division is entirely coincidental.

Noun

 * 1)  A mammalian sex chromosome, occurring only in male cells. Cells of females have a pair of X chromosomes while cells of males have an X and a Y.

Translations

 * Finnish:
 * French:
 * German:
 * Icelandic: Y-litningur
 * Irish: Y-chrómasóm
 * Romanian: cromozom Y
 * Swedish: