Related formstet·ra·he·dral·ly, adverb
Examples from the Web for tetrahedral
The young spores (G, H) are nearly colorless and are tetrahedral (like a three-sided pyramid) in form.Elements of Structural and Systematic Botany|Douglas Houghton Campbell
Polar spines very thick and short, tetrahedral, one-fourth as long and broad as the major axis.
To the south, 27 E., is a tetrahedral peak, which our guide called Ngoma-dingding.Trans-Himalaya, Vol. 2 (of 2)|Sven Hedin
The tetrahedral or Reye complex is the simplest and best known of proper quadratic complexes.
In Peripatus capensis the organ in question can hardly be described as tetrahedral.The Works of Francis Maitland Balfour, Volume 1|Francis Maitland Balfour