Liposomal

Part of speech: adjective

Definitions

1. A delivery system designed to encapsulate and transport substances using tiny vesicles called liposomes
2. A method that enhances the bioavailability of drugs by encapsulating them in lipid bilayers, allowing for better absorption
3. Referring to formulations that improve the effectiveness of medications by protecting them within lipid-based vehicles for targeted release

Etymology: "Liposomal" is a straightforward formation: it combines "liposome" with the adjectival suffix "-al", meaning "relating to" or "having the nature of". The adjective therefore describes something that is built from, or contains, liposomes. The base word "liposome" is itself a modern scientific coinage, assembled from Greek roots: "lipos", meaning fat, and "soma", meaning body. A liposome is a tiny spherical vesicle with a membrane of lipid bilayers enclosing an aqueous core. Because the bilayer resembles the membranes of living cells, drugs packed inside these spheres can be carried through the body more effectively. The adjective is most often used in pharmaceutical contexts, such as "liposomal doxorubicin", where the drug is delivered in this form.