vermilion border (English, noun)
expansion: vermilion border (plural vermilion borders)
Senses:
topics: anatomy
medicine
sciences
glosses: The normally sharp demarcation between the lip (red-coloured) and the adjacent normal skin, representing the change in the epidermis from highly keratinized external skin to less keratinized internal skin.
Forms:
form: vermilion borders
tags: plural