noncrystalline

Thân thiện

The scientist examines a noncrystalline solid under bright light.

Definition

1. Adjective:
   • Not having a crystalline structure; lacking the regular, ordered arrangement of atoms or molecules characteristic of crystals: Describes a solid material whose constituent particles are not arranged in a repeating, long-range pattern. This includes glasses, gels, and many amorphous solids.

Usage Examples

• Adjective:
  • Glass is a classic example of a noncrystalline solid.
  • The noncrystalline polymer had different optical properties than its crystalline counterpart.
  • Many volcanic rocks contain a noncrystalline matrix.

Advanced Usage

• In materials science, the term is often used in contrast to "crystalline" or "polycrystalline."
  • The study compared the mechanical strength of crystalline and noncrystalline forms of the alloy.
• It can describe the state of a substance that has solidified too rapidly for crystals to form.
  • The rapidly cooled metal formed a noncrystalline metallic glass.

Variants and Related Words

• Amorphous (adj): A very close synonym, often used interchangeably with "noncrystalline" to describe solids lacking a defined crystalline shape or structure.
  • The plastic was in an amorphous state.
• Crystalline (adj): The direct antonym, describing a solid with a definite and orderly geometric pattern.
  • Quartz is a crystalline form of silica.

Synonyms

• Amorphous
• Uncrystalline
• Glassy (in specific contexts)

Antonyms

• Crystalline
• Crystallized

Học thuật

Adjective

1. not crystalline