tetrahedral pore, tetrahedral interstice, tetrahedral void
tühik/poor kristallivõres, mida ümbritsevad lähimad aatomid moodustavad tetraeedri (vt kristallivõre tühik; vrd oktaeederpoor), in crystal structures, a void surrounded by four atoms that form the vertices of a tetrahedron (see: lattice void; compare: octahedral pore)
