A prominent brow refers to a forehead that is noticeably pronounced or protruding. This feature can be a result of genetics, where the bone structure of the skull is more pronounced, giving the brow a more defined appearance. It is often associated with strong facial features and can be seen in various populations around the world. In art and literature, a prominent brow is sometimes linked to characteristics such as intelligence or strength. For example, many depictions of historical figures, like Leonardo da Vinci, often highlight this feature to convey wisdom and authority.