2001, Polymeric Biomaterials, Revised and Expanded[1], →ISBN, page 545:
Based on their behavior in living tissue, polymeric biomaterials can be divided into biostable, bioabsorbable (biodegradable or bioresorbable), and partially bioabsorbable materials.
2003, Vasant V. Ranade, Drug Delivery Systems, Second Edition[2], →ISBN, page 84:
In these cases, a high molecular weight, biostable polymeric carrier is preferred.
2006, Kimberly S. Gehar, Nanophysics, Nanoclusters and Nanodevices[3], →ISBN, page 24:
Here, we have focused the attention on PMMA because this polymer is considered a biostable polymer in biomedical applications.