Definition of tetragonal
: of, relating to, or characteristic of the tetragonal system
tetragonallyplay \-nəl-ē\ adverb
Origin and Etymology of tetragonal
Late Latin tetragonalis having four angles and four sides, from tetragonum quadrangle, from Greek tetragōnon, from neuter of tetragōnos tetragonal, from tetra- + gōnia angle — more at -gon
First Known Use: 1868
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