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HY antigen

[eych-wahy]
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noun Immunology.
  1. an antigen encoded by a gene on the Y (male) chromosome, active in the development of male structures.
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Origin of HY antigen

1975–80; H(uman) Y (chromosome)
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018