Definition

1. Adjective:
   • Packed especially tightly: Arranged or filled with items or particles that are very near to each other, leaving minimal empty space.

Usage

• As an adjective: Used to describe a state where objects, people, or particles are densely arranged.
  • The molecules in a solid are close-packed.
  • The refugees lived in close-packed quarters.

Advanced Usage

• Scientific/Technical Context: Often used in physics, chemistry, and materials science to describe atomic or molecular structures.
  • The crystal has a close-packed hexagonal lattice.
• Descriptive Context: Can describe crowded situations or densely arranged items.
  • The close-packed shelves left no room for another book.

Variants and Related Words

• Close-packedness (noun, rare): The quality or state of being close-packed.
• Densely packed: A near-synonymous phrase.
• Compact: Similar in meaning but can imply neat organization in addition to density.

Synonyms

• Dense
• Compact
• Crammed
• Tightly packed

Antonyms

• Loose
• Sparse
• Scattered

Related Phrases

• Close-packed array: A technical term for a regular, dense arrangement of spheres or points.
  • The atoms form a close-packed array.
• Close-packed structure: A specific term in crystallography.
  • Gold crystallizes in a face-centered cubic close-packed structure.

Adjective

1. packed especially tightly