comedo
/'kɔmidou/
Học thuậtThân thiện
Definition
- Noun:
- A black-tipped plug clogging a pore of the skin: A comedo is a small, non-inflammatory skin lesion formed by a plug of dead skin cells and sebum (oil) within a hair follicle. When the plug is open at the skin's surface and exposed to air, it oxidizes and appears black, commonly known as a blackhead.
Usage Examples
- Noun:
- The dermatologist explained that a comedo is the primary lesion of acne.
- Regular cleansing can help prevent the formation of a comedo.
- The esthetician carefully extracted the comedo from the patient's nose.
Advanced Usage
"Closed comedo": Also known as a whitehead. This is a comedo where the follicle is completely blocked by the plug, and the surface of the skin remains closed, giving it a white or flesh-colored appearance.
- A closed comedo, or whitehead, is less visible but can develop into an inflamed pimple.
"Open comedo": The standard term for a blackhead, where the plug is open to the air.
- An open comedo has a dark appearance due to the oxidation of melanin and sebum.
Variants and Related Words
- Comedones (n): The plural form of comedo.
- The treatment is effective for reducing comedones.
- Comedogenic (adj): Describing a substance that tends to cause or worsen comedones by blocking pores.
- She avoids using comedogenic makeup to prevent breakouts.
- Comedolysis (n): The process of breaking down or dissolving comedones.
- Salicylic acid aids in comedolysis.
Synonyms
- Blackhead: The common, non-medical term for an open comedo.
- Whitehead: The common term for a closed comedo.
Related Terms and Phrases
- Acne vulgaris: The medical term for common acne, a skin condition characterized by the presence of comedones, papules, and pustules.
- Acne vulgaris often begins with the formation of a comedo.
- Follicular plug: A descriptive term for the material blocking the follicle in a comedo.
Noun
- a black-tipped plug clogging a pore of the skin