Immunocyte

Part of speech: noun

Definitions

1. A cell that forms part of the body's immune system and helps defend against infection and foreign substances
2. Any of the specialized white blood cells that recognize pathogens and mount protective responses within the organism
3. A blood or tissue cell involved in immunity, such as a lymphocyte or macrophage, that guards the body from disease

Etymology: Immunocyte is a modern scientific coinage, built from two parts that each carry a clear meaning. The first, "immuno-", comes from the Latin "immunis", meaning exempt or free from a burden, which gave English "immune" with the sense of being protected from a particular disease. The second, "-cyte", comes from Greek "kytos", meaning hollow vessel or cell, the same root behind "cell" in its biological sense. Put together, the word names a cell involved in immunity, the body's defence system. Its formation follows the pattern of other biological terms that pair a prefix with "-cyte", which is why it reads as a technical label rather than an everyday word. The word is used mainly in medical and immunological writing, where it sits alongside more specific names for individual cell types.

Synonyms: immune cell