xyy
/ɛks waɪ waɪ/
noun
- A genetic condition in which a male has an extra Y chromosome, also called Jacobs syndrome; usually causes no obvious symptoms but may be associated with taller height.
- The doctor explained that XYY is a chromosomal variation that rarely causes health problems.
- Research on XYY has helped scientists understand human genetics better.
- Boys with XYY syndrome are often taller than average but otherwise healthy.