Definition

1. Noun:
   • Photoreaction: A chemical reaction that is initiated or catalyzed by the absorption of light energy. This is the direct translation and primary scientific meaning of the term.

Usage Examples

• Noun:
  • Chlorophyll tham gia vào một quang phản ứng quan trọng trong quá trình quang hợp. (Chlorophyll participates in a crucial photoreaction in the process of photosynthesis.)
  • Phòng thí nghiệm đang nghiên cứu tốc độ của quang phản ứng này. (The laboratory is studying the rate of this photoreaction.)

Advanced Usage

• The term is highly specialized and used almost exclusively in scientific contexts such as chemistry, photobiology, and materials science. It refers to the fundamental event where light acts as a reactant.

Variants and Related Words

• Phản ứng quang hóa (n): Photochemical reaction. This is a more descriptive, full-term synonym.
  • Sự phân hủy của bạc clorua là một phản ứng quang hóa điển hình. (The decomposition of silver chloride is a classic photochemical reaction.)

Synonyms

• Photochemical reaction: A reaction initiated by the absorption of light.
• Light-induced reaction: A more general term for a reaction caused by light.

Related Scientific Concepts

• Quang hợp (n): Photosynthesis. The complex process in plants involving multiple photoreactions.

  • Quang hợp bao gồm một chuỗi các quang phản ứng phức tạp. (Photosynthesis involves a series of complex photoreactions.)

• Quang xúc tác (n): Photocatalysis. A process where a reaction is accelerated by a catalyst that absorbs light.

  • Chất xúc tác này được dùng trong quang xúc tác để điều khiển quang phản ứng. (This catalyst is used in photocatalysis to control the photoreaction.)