heterogametic(redirected from digametic)
Also found in: Medical.
1. Producing dissimilar gametes, such as those of human males, who produce two types of spermatozoa, one bearing the X chromosome and the other bearing the Y chromosome.
2. Of or relating to heterogametes.
(Genetics) denoting the sex that possesses dissimilar sex chromosomes. In humans and many other mammals it is the male sex, possessing one X-chromosome and one Y-chromosome. Compare homogametic