pigmentation

/,pigmən'teiʃn/

Thân thiện

The doctor examined the patient's unusual skin pigmentation.

Definition

1. Noun:
   • Coloration of living tissues by pigment: The natural coloring of an organism's tissues, such as skin, hair, eyes, or plant parts, resulting from the presence of pigments.
   • The deposition of pigment: The biological process by which pigment is produced and deposited in the cells of animals, plants, or humans.

Examples of Usage

• Noun:
  • Melanin is responsible for the pigmentation of human skin.
  • The plant's leaf pigmentation changes from green to red in the autumn.
  • A lack of pigmentation in the skin is a characteristic of albinism.

Advanced Usage

• Abnormal pigmentation: Refers to unusual or irregular coloring, often used in medical contexts.
  • The dermatologist examined the area of abnormal pigmentation on the patient's arm.

Variants and Related Words

• Pigment (n): The substance that gives color to tissue.
  • Chlorophyll is the green pigment in plants.
• Depigmentation (n): The loss or absence of pigmentation.
  • Vitiligo causes depigmentation of patches of skin.
• Hyperpigmentation (n): The darkening of an area of skin or tissue due to increased melanin.
  • Sun exposure can lead to hyperpigmentation.

Synonyms

• Coloration: The condition of being colored.
• Tinting: A slight or pale coloration.

Related Phrases

• Skin pigmentation: Specifically refers to the coloring of the skin.
  • Genetics largely determines a person's skin pigmentation.
• Eye pigmentation: Refers to the color of the iris.
  • The gene affects both hair color and eye pigmentation.

Học thuật

Noun

1. coloration of living tissues by pigment
2. the deposition of pigment in animals or plants or human beings