What does biomaterial mean?
A biomaterial is any natural or synthetic substance that has been engineered to interact with biological systems for a medical purpose. The term covers an extraordinarily broad range of materials: metals such as titanium used in joint replacements, polymers employed in drug delivery devices, ceramics found in dental implants, and even specially treated animal-derived tissues used in heart valves. What distinguishes a biomaterial from an ordinary material is not its composition but its intent — it must be compatible with living tissue, meaning the body tolerates it without harmful immune rejection or toxicity. Biomaterials are central to modern regenerative medicine, where porous structures called scaffolds encourage cells to grow into new tissue. The field draws on materials science, chemistry, biology, and engineering, and continues to expand as researchers design materials that dissolve harmlessly once their job is done. For clinicians and scientists alike, 'biomaterial' signals a material judged safe and effective for direct contact with the human body.
nounA natural or synthetic material designed to interact with biological systems, especially for use in medical devices, implants, or tissue engineering.
- Any natural or synthetic substance engineered to interact with living tissue, typically used in medical devices, implants, drug delivery systems, or tissue engineering scaffolds.
"The surgeon selected a biocompatible biomaterial for the patient's hip implant."
"Researchers developed a new biomaterial that promotes bone regeneration after fracture."
"The stent is coated with a biodegradable biomaterial that dissolves once the artery has healed."
Standard plural; frequently used when referring to the research field as a whole (e.g. 'the study of biomaterials').
"Advances in biomaterials have transformed modern reconstructive surgery."
Every hip replacement, dental crown, and dissolvable suture in your body relies on carefully chosen biomaterials — materials science meets medicine at the molecular level.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of biomaterial
The word 'biomaterial' combines the Greek root 'bio-' (from 'bios', meaning life) with the Latin-rooted word 'material', which traces back to Latin 'materia', denoting matter or substance. The compound emerged in twentieth-century English as advances in surgery and prosthetics created a need for a precise term describing substances deliberately placed inside or alongside living tissue. It shares its Greek prefix with words like 'biology' and 'biopsy', and its second element with everyday words such as 'materialise'.
How biomaterial is actually used
Primarily used in formal, scientific, and clinical contexts such as biomedical engineering, dentistry, surgery, and regenerative medicine. Rarely used in everyday conversation. Often paired with terms like 'biocompatibility' when describing how well the material is tolerated by the body.
Easily confused with biomaterial
Biomaterial specifically refers to engineered materials intended for medical or biological application, whereas biological material refers to any naturally occurring matter of living origin.