[luːˈkɒsɪt]

Definitions

1. noun

A type of white blood cell that plays a key role in the immune system, particularly in the fight against infections and foreign substances.

“The doctor examined the patient’s blood sample to check for an increase in leukocytes, which could indicate an infection.”

2. noun

A cell in the blood or lymphatic system, especially one that has a nucleus and is involved in immune responses.

“Leukocytes are an essential component of the body’s defense mechanism against diseases and pathogens.”