Assertion: tetrahedron | /r/HasProperty | rare
Facets:
value: very
type: DEGREE
Source sentences:
text: 1. any polyhedron having four plane faces Familiarity information: TETRAHEDRON used as a noun is very rare.
text: The tetrahedron is rare, but they are still utilized so a good pilot will be able to recognize them and understand the information they are displaying.