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tetrahedral

tetrahedral

1 7.9
A solid shape with four triangular faces
  • adjective
  • /ˌtɛtrəˈhɛdrəl/
  • Specialized
translation icon : tetraédrico
  • The tetrahedral cells resulted in a bad lift-to-drag ratio.
  • tetrahedral form
  • tetrahedral coordination
  • tetrahedral shape

Examples

  • Use it to create triangular, quadrilateral, prismatic, tetrahedral, pyramidal, and hexahedral cells in one grid.

    Academic text (2004)
  • Those bonds give rise to a stable network of tetrahedral water molecules.

    Academic text (2007)
  • It's not as large for the tetrahedral complex.

  • And then up above the triangle is the tetrahedral nitrogen.

  • They are responsible for the tetrahedral structure of water ice and many of water's important and anomalous properties.

    Academic text (2012)
  • Like H2O, SiO2 forms a tetrahedral network solid over a range of conditions, and as such, its physical properties parallel in many ways those of ice.

    Academic text (1998)
  • The AEA charter was to demonstrate aerial locomotion using the tetrahedral kite principle.

    Academic text (2003)
  • The model of the molecule has a tetrahedral shape with four triangular faces.

  • In geometry class, we learned that a tetrahedral shape has four triangular sides.

  • The artist created a tetrahedral sculpture that captured light beautifully from every angle.

How Many Faces

octahedral
  • Specialized
7.5
tetrahedral
  • Specialized
1 7.9

Surface Forms

tetrahedral positive

Morphology

tetrahedral = tetrahedron (semi-transparent) = tetra + hedron + al

The adjective is formed regularly from 'tetrahedron' with '-al', but the base is a specialized mathematical term that many learners may not know.

Etymology

Tetrahedral comes from Greek parts tetra- meaning 'four' and hedron meaning 'face' or 'side'. So, tetrahedral simply describes a solid that has four triangular faces, which is why molecules like methane are called tetrahedral.