W chromosome
Also found in: Dictionary, Thesaurus, Medical.
Related to W chromosome: heterogametic, Z chromosome
W chromosome
[′dəb·əl‚yü ‚krō·mə‚sōm] (genetics)
The sex chromosome present only in females in species with female heterogamety.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.