Definition

1. Noun:
   • Iris: The circular, colored part of the eye surrounding the pupil. It controls the amount of light entering the eye by adjusting the size of the pupil.
   • Black part of the eye: A literal description referring to the dark, central area of the eyeball, which includes both the pupil and the surrounding colored iris.

Usage Examples

• Noun:
  • Tròng đen của cô ấy có màu nâu. (Her iris is brown.)
  • Ánh sáng làm co tròng đen lại. (The light causes the pupil to contract.)
  • Anh ấy có đôi mắt với tròng đen rất to. (He has eyes with very large, dark pupils.)

Advanced Usage

• The term "tròng đen" is sometimes used poetically or descriptively to refer to the eye itself, emphasizing its depth or appearance.
  • Câu chuyện ấy in sâu trong tròng đen tôi. (That story is deeply imprinted in my mind's eye.)

Variants and Related Words

• Tròng mắt (n): The eyeball.

  • Bụi bay vào tròng mắt. (Dust flew into the eyeball.)

• Tròng trắng (n): The white part of the eye; the sclera.

  • Mắt đỏ ngầu ở phần tròng trắng. (The eyes are bloodshot in the white part.)

• Con ngươi (n): The pupil (the central black opening within the iris).

  • Con ngươi giãn ra trong bóng tối. (The pupil dilates in the dark.)

Synonyms

• Iris: The colored part of the eye.
• Pupil: The central black opening (often included in the common understanding of "tròng đen").

Related Idioms

• Mắt tròng trắng tròng đen: Used to describe a state of shock, fear, or death where the eyes are wide open and unmoving.
  • Sợ hãi đến mắt tròng trắng tròng đen. (To be so frightened that one's eyes are wide with fear.)