phenotype

Definition of phenotype

phenotype

(FEE-noh-tipe)
The physical, biochemical, and behavioral traits that can be observed in a person. Some examples of a person’s phenotype are height, eye color, hair color, blood type, behavior, and the presence of certain diseases. A phenotype is based on a person’s genes and some environmental factors, such as diet, exercise, and smoking.

Source: NCI Dictionary of Cancer Terms