noun. an abnormal increase in the number of white blood cells in the blood as a result of infection (as in leukemia).
- blood disease
Example sentences of the word leukocytosis
1. Noun, singular or mass
A baby born to a mother with chorioamnionitis may have leukocytosis if she is born with an infection and her body is trying to fight off invading bacteria.
2. Verb, past participle
Even a mild infection can be serious if you have leukocytosis**, because your body can’t fight off the infection.