Zy
- Zygote
- A single living cell that results when a female egg is fertilized by sperm.
- Zymase
- Enzymes present in yeast that catalyze fermentation of sugar into alcohol and carbon dioxide.
- Zymogen
- An inactive precursor of an enzyme.
- Zymoscope
- An apparatus used for determining the fermenting power of yeast by measuring the amount of carbonic acid produced from a given quantity of sugar.