light-tight

Thân thiện

Photographers store their film in light-tight containers.

Definition

1. Adjective:
   • Not penetrable by light: Describes something that completely blocks the passage of light, preventing it from entering or escaping. This is a technical term often used in contexts where light exposure must be strictly controlled.

Usage

• The term "light-tight" is used to describe containers, rooms, seals, or materials designed to prevent any light from passing through. It is crucial in photography (for film handling), scientific experiments, and storage of light-sensitive materials.

Examples

• Adjective:
  • The photographic darkroom must be completely light-tight to prevent film from being exposed.
  • These light-tight bags are essential for storing undeveloped film.
  • The experiment required a light-tight chamber to ensure accurate results.

Advanced Usage

• Technical Specification: Often used in technical manuals and specifications for equipment.
  • Ensure the lid forms a light-tight seal before proceeding with the development process.

Variants and Related Words

• Lightproof (adj): A direct synonym meaning impervious to light. Often used interchangeably with "light-tight."
  • A lightproof enclosure.

Synonyms

• Opaque: Not able to be seen through; not transparent. (Note: "Opaque" is a more general term, while "light-tight" specifically implies a designed or complete barrier.)
• Lightproof: Impervious to light.

Notes on Meaning

• The term is a compound adjective formed from "light" and "tight" (in the sense of "impervious" or "secure"). It describes a specific, functional property rather than a general characteristic.

Học thuật

Adjective

1. not penetrable by light
   • lightproof containers

Từ đồng nghĩa

• lightproof