(mathematics) Synonym of tetra- used for multiplication with a second numerical prefix. / (chemistry, obsolete) Synonym of tetra- used before vowels.

(mathematics, chemistry) Having four identical units

plural of tetrakis hexahedron

(geometry) A Catalan solid that has 24 congruent triangular faces and 36 edges and can be imagined as a cube with a square pyramid on each face.

(rare, linguistics) A word occurring only four times in a given corpus.

plural of tetrakis legomenon

(chemistry) Any compound containing four simple phosphate groups

plural of tetrakishexahedron

(crystallography) A tetrahexahedron.

plural of tetrakishexahedron