tetrahedral

adjective

tet·​ra·​he·​dral ˌte-trə-ˈhē-drəl 

1

: being a polyhedral angle with four faces

2

: relating to, forming, or having the form of a tetrahedron

tetrahedrally

ˌte-trə-ˈhē-drə-lē 

adverb

Examples of tetrahedral in a Sentence

Recent Examples on the Web

For this pyramid, sheer size is not the real superlative; Vegas, after all, has its own, even larger tetrahedral hotel. — Boyce Upholt, Outside Online, 10 Aug. 2022

The compound at the heart of the SpinQ machine is dimethylphosphite, a tetrahedral molecule consisting of one phosphorous atom, one hydrogen atom, an oxygen and two CH3O groups. — The Physics Arxiv Blog, Discover Magazine, 29 Jan. 2021

In its basic configuration, an Ambisonics recording uses four microphone capsules arranged in a tetrahedral pattern (higher-resolution recordings use more). — IEEE Spectrum, 24 Jan. 2019

The main actors whose collective electrical activity is thought to be responsible for the EEG signals, via a mechanism known as volume conduction, are cortical pyramidal neurons, named for their tetrahedral shape. — Christof Koch, Scientific American, 1 Nov. 2017

Word History

First Known Use

1794, in the meaning defined at sense 1

Rhymes for tetrahedral

• octahedral
• polyhedral
• rhombohedral
• anhedral
• cathedral
• dihedral
• euhedral
• subhedral
• icosahedral