blackhead

Thân thiện

A dermatologist uses a tool to remove a blackhead from a patient's nose.

Definition

1. Noun:
   • A small, dark bump on the skin: A "blackhead" is a type of blemish where a pore becomes clogged with oil and dead skin cells. The surface appears dark due to oxidation when exposed to air, not dirt.

Usage

• Noun:
  • Regular cleansing can help prevent blackheads.
  • The esthetician removed the blackhead carefully.

Advanced Usage

• Medical/Technical Context: In dermatology, a "blackhead" is specifically called an open comedo. This distinguishes it from a whitehead (closed comedo).
  • The treatment for open comedones (blackheads) differs from that for closed ones.

Variants and Related Words

• Comedo (plural: comedones) (n): The medical term for a clogged hair follicle, which includes both blackheads and whiteheads.
• Whitehead (n): A similar skin blemish where the pore is closed, appearing as a small, white or flesh-colored bump.

Synonyms

• Open comedo: The formal, medical synonym.

Notes on Meaning

• The word "blackhead" refers to this specific skin condition. It is not used to describe other dark-colored bumps or spots on the skin. The dark color is a result of a chemical reaction (oxidation), not trapped dirt.

Học thuật

Noun

1. a black-tipped plug clogging a pore of the skin

Từ đồng nghĩa

• comedo