myristoylation

This term is a highly specialized biochemical descriptor used almost exclusively in molecular biology and proteomics. It describes a specific post-translational modification that alters a protein's hydrophobicity, typically to facilitate its anchoring to the plasma membrane or other intracellular membranes.

As a technical term for a chemical process, it is treated as an uncountable noun. It does not refer to a discrete object that can be counted, but rather to the phenomenon or the chemical reaction itself.