zygote
Pronunciation
Noun
B2 Upper-intermediate
Quick answer
The single cell formed when a sperm and an egg fuse together at fertilization.
Test yourself
Which word fits the gap? "Within days, the _____ divides repeatedly to form a tiny ball of cells."
Answer: zygote
In your own words, what does "zygote" mean?
The single cell formed when a sperm and an egg fuse together at fertilization.