Noun
Titanium dioxide occurring in acute octahedral crystals.
Source: Webster's dictionaryLikewise if the meteorite is dominated by the face centered taenite it is called an octahedrite as kamacite will exsolve from the octahedral crystal boundaries of taenite making the meteorite appear octahedral. Source: Internet
Also due to this relationship we get the terms ataxite, hexahedrites and octahedrite. Source: Internet