You're likely thinking of the suffix "-cyte," which indicates a type of cell.

Here are some examples:

* Leukocyte: White blood cell

* Erythrocyte: Red blood cell

* Myocyte: Muscle cell

* Neurocyte: Nerve cell

* Osteocyte: Bone cell

So, if you see a word ending in "-cyte," you can usually infer that it refers to a specific type of cell.