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XXYY syndrome

Noun CEFR B2

Definitions

A sex chromosome anomaly in which a male has an extra X chromosome and an extra Y chromosome.

uncountable

CEFR level

B2
Upper Intermediate
This word is part of the CEFR B2 vocabulary — upper intermediate level.
See all B2 English words →

See also

XY XY problem XY system xyelid XYL Xyl.

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