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1. Of or relating to a tetrahedron.
2. Having four faces.

tet′ra·he′dral·ly adv.


(ˌtɛ trəˈhi drəl)

1. pertaining to or having the form of a tetrahedron.
2. having four lateral planes in addition to the top and bottom.
tet`ra•he′dral•ly, adv.
References in classic literature ?
We shall not try to give the reader an idea of that tetrahedral nose, that horseshoe mouth; that little left eye obstructed with a red, bushy, bristling eyebrow, while the right eye disappeared entirely beneath an enormous wart; of those teeth in disarray, broken here and there, like the embattled parapet of a fortress; of that callous lip, upon which one of these teeth encroached, like the tusk of an elephant; of that forked chin; and above all, of the expression spread over the whole; of that mixture of malice, amazement, and sadness.
This research is only possible with the unique design of MMS, which uses four spacecraft flying in a tight tetrahedral formation to give high temporal and spatial resolution measurements of the magnetic reconnection region.
Results from tetrahedral and hexahedral meshing are compared for ped-pro and exterior load cases.
Most often they are meshed with tetrahedral elements of 2-3 mm edge length.
The AMBEO VR Mic is an Ambisonics microphone that uses four carefully selected, matched capsules in a tetrahedral arrangement.
Cytokinesis in microsporocyte meiosis is of simultaneous type, and the micropore tetrads are tetrahedral.
After a review of numerical methods, she covers scanning techniques and image processing, fundamentals of geometric modeling and meshing, image-based triangular and tetrahedral meshing, image-base quadrilateral and hexahedral meshing, volumetric T-spline modeling, and finite element and isogeometric analysis applications.
Support for shell element (2D) and tetrahedral and hexahedral meshing (3D) is now completed with support of discrete mass and rotary inertia (0D), as well as beam elements (1D).
Crushed under high pressure, carbon's atomic bonds buckle, popping atoms into the 3-D tetrahedral arrangement of diamonds.
Tetrahedral and hexahedral elements are the most commonly utilized in three-dimensional finite element method (FEM), due to their simplicity and well establishment.
The camera's tetrahedral design takes stunning 360-degree photos with zero blind spots in crisp, 14-megapixel color.