2 definitions found
From Webster's Revised Unabridged Dictionary (1913) [web1913]:
Tetrahedron \Tet`ra*he"dron\, n. [Tetra- + Gr ? seat, base, fr
? to sit.] (Geom.)
A solid figure inclosed or bounded by four triangles.
Note: In crystallography, the regular tetrahedron is regarded
as the hemihedral form of the regular octahedron.
{Regular tetrahedron} (Geom.), a solid bounded by four equal
equilateral triangles; one of the five regular solids.
From WordNet r 1.6 [wn]:
tetrahedron
n : any polyhedron having four plane faces
more about tetrahedron
browse words by letter
a
b
c
d
e
f
g
h
i
j
k
l
m
n
o
p
q
r
s
t
u
v
w
x
y
z
or search  
thesauri
dictionary
search words
|