centrum

Centrum is a term with multiple meanings across different fields. It originates from the Latin centrum, meaning center, which in turn derives from the Greek kentron, roughly "center" or "point." In general use, centrum denotes the central part, hub, or focal point of something and appears as a place name in several languages, where it designates the city center or central district.

In anatomy, centrum refers to the main body of a vertebra, the weight‑bearing central portion that supports the spinal column. The centrum articulates with adjacent vertebrae and bears the intervertebral discs in between. In some early vertebrates the vertebral centrum consisted of multiple elements; in most modern vertebrates the centrum is a single, solid structure.

In paleontology and comparative anatomy, the term has historical usage to describe the central element of a vertebral complex, with intercentra and pleurocentra present in different groups. The modern concept uses a single centrum in most taxa, but the term remains in descriptive naming.

As a place name, Centrum is used in the names of central districts in several Central European cities, such as Poland and the Czech Republic. It is common in addresses and maps to refer to the city center.

In commerce, Centrum is the brand name of a line of dietary supplements, notably multivitamins manufactured by Pfizer (formerly by Wyeth). The brand is marketed for various age groups and needs, including Centrum Adult, Centrum Silver, and Centrum Kids.