Word: Comedo
Definition: A comedo is a small plug that clogs a pore in the skin. It can appear as a black dot (called a blackhead) or a white bump (called a whitehead).
In a dermatological context, you might hear the term "comedogenic," which refers to substances that can cause the formation of comedos. For example, "Some oils are comedogenic and can worsen acne."
While "comedo" primarily refers to a skin condition, it is not commonly used in other contexts. Its medical usage is specific to dermatology.
There are no specific idioms or phrasal verbs that include "comedo," as it is a technical term.
In summary, "comedo" is a term used in dermatology to describe a clogged pore in the skin, which can be black or white. It's important to maintain skin hygiene to prevent the formation of comedos.