Help Wordnik hunt for a million missing words by backing our Kickstarter!


from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. An aneuploidy of the sex chromosomes in which a human male receives an extra Y chromosome, giving a total of 47 chromosomes instead of the usual 46; the condition is associated with learning difficulties and above-average height.


Sorry, no etymologies found.


Sorry, no example sentences found.


Log in or sign up to get involved in the conversation. It's quick and easy.