The vermilion border, which refers to the border of the lips, is a term commonly used in medicine and cosmetics. Its spelling may appear tricky, but it can be easily explained using IPA phonetic transcription. The first syllable is pronounced /vərmɪljən/, which rhymes with "her million". The second syllable, "border", is pronounced the way it is spelled, /ˈbɔːdər/. Putting the syllables together, the word is pronounced /vərˈmɪljən ˈbɔːdər/. With this guide, mastering the spelling of vermilion border is a breeze.
The vermilion border refers to the distinct demarcation line between the outer surface of the lips and the adjacent skin of the face. It is specifically the transition area where the reddish-pink colored lip tissue meets the paler skin surrounding the mouth. The term "vermilion" derives from the Latin word "vermiculus," meaning "little worm," which is a reference to the worm-like shape of the border when viewed under a magnifying lens.
This well-defined border is characterized by its pinkish to reddish hue, which is due to the dense concentration of blood vessels in this region. The vermilion border is lined with a thin layer of specialized skin called the "stratum corneum," which provides a protective barrier against the external environment. Additionally, it contains numerous nerve endings, contributing to its heightened sensitivity compared to the surrounding skin.
Apart from its aesthetic appeal, the vermilion border plays an essential functional role, as it helps to prevent moisture loss from the lips, aids in speech articulation, and assists in food intake. The distinct color contrast between the vermilion border and the adjacent skin also contributes to facial aesthetics, serving as a defining feature in facial attractiveness.
Due to its delicate nature and prominent location, the vermilion border is highly visible and susceptible to various conditions, including inflammation, infections, and sun damage. Consequently, it often receives special attention during cosmetic procedures and dermatological evaluations.
The red border of the lips where the skin merges into mucous membrane.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.
The word "vermilion" originates from the Old French word "vermeillon", which can be traced back to the Latin word "vermiculus", meaning "little worm" or "worm-shaped". This term was used to describe a brilliant red color derived from the pigment of a dried insect called the kermes vermilio, commonly known as the "worm insect".
The term "border" in this context refers to the outer edge or boundary of something. So, when combined, the "vermilion border" refers to the distinct and vivid reddish-colored boundary formed around the lips.