bioink

This term is a specialized technical neologism used primarily in regenerative medicine and tissue engineering. It blends the biological requirements of living cells with the mechanical requirements of additive manufacturing, implying a substance that must be fluid enough to be extruded through a nozzle yet stable enough to maintain a three-dimensional shape.

Because it refers to a specific class of materials, it is often used in a collective sense in scientific literature. While it can be pluralized when referring to different types of formulations, it frequently functions as an uncountable mass noun when discussing the material in general.