adjective
- Genetics. having unlike gametes, or reproducing by the union of such gametes (opposed to isogamous).
- Botany. having flowers or florets of two sexually different kinds (opposed to homogamous).
adj.
- Relating to heterogamy.
- Alternation of sexual and parthenogenetic generations, as in the life cycles of some aphids.
- A reproductive system that is characterized by the fusion of gametes (called heterogametes) that are dissimilar in size and structure, such as the egg and sperm of animals.