macrogamete
/ˌmækroʊˈɡæmiːt/
noun
- The larger of the two types of gametes (sex cells) in organisms that reproduce sexually; typically the female egg cell.
- During fertilization, the microgamete fuses with the macrogamete to form a zygote.
- The macrogamete provides nutrients and cytoplasm for the developing embryo.
- In many algae, the macrogamete is stationary and much larger than the microgamete.
Antonyms