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icosahedron

 

Definitions from WordNet

Noun icosahedron has 1 sense
  1. icosahedron - any polyhedron having twenty plane faces
    --1 is a kind of
    polyhedron

Definitions from the Web

Icosahedron

Definition:

An icosahedron is a three-dimensional geometric shape with 20 equilateral triangular faces.

Senses:

  1. Geometry: In geometry, an icosahedron is one of the five Platonic solids, having 20 faces, 30 edges, and 12 vertices.
  2. Crystallography: In crystallography, an icosahedron is a symmetric crystal structure with 20 faces.

Usages:

The term "icosahedron" can be used in various contexts:

  • Mathematics and Geometry: Icosahedrons are often studied in mathematics and geometry due to their unique properties.
  • Architecture and Design: The concept of the icosahedron is sometimes applied in architectural designs as a basis for creating visually appealing structures.
  • Education: Teachers might use icosahedron models as educational tools to demonstrate various mathematical and geometrical principles.
  • Gaming and Entertainment: Icosahedrons are commonly used in role-playing games as dice, specifically the twenty-sided dice also known as D20.

Sample Sentences:

  1. The icosahedron is one of the regular polyhedra.
  2. The crystal exhibited a perfectly formed icosahedron structure.
  3. The architect incorporated icosahedron-inspired patterns into the building's façade.
  4. The teacher handed out icosahedron models to the students for a geometry project.
  5. Roll the icosahedron dice to determine the outcome of your character's action in the game.

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