ScienceAugust 16, 2026

octahedrons

ok-tuh-HEE-druhnz

Definition

Three-dimensional geometric shapes that have eight flat triangular faces.

Etymology

Derived from the Greek 'oktō' meaning 'eight' and 'hedra' meaning 'seat' or 'face,' referring to the shape's eight surfaces.

In the news

The word is used in the article as an example of a common type of polyhedron to help define the more complex category of noble polyhedra.

Meet Connor Hill, the 17-year-old Pennsylvania student who wrote a computer program to classify noble pol

Read the full article ↗

The Times of India

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