Definify.com
Webster 1913 Edition
Sphenoid
Sphe′noid
,Adj.
[Gr. [GREEK][GREEK][GREEK];
σφήν
a wedge + εἶδοσ
form: cf. F. sphénoïde
.] 1.
Wedge-shaped;
as, a
. sphenoid
crystal2.
(Anat.)
Of or pertaining to the sphenoid bone.
Sphenoid bone
(Anat.)
, an irregularly shaped bone in front of the occipital in the base of the skull of the higher vertebrates. It is composed of several fetal bones which become united the adult. See
Alisphenoid
, Basisphenoid
, Orbitosphenoid
, Presphenoid
.Sphe′noid
,Noun.
1.
(Crystallog.)
A wedge-shaped crystal bounded by four equal isosceles triangles. It is the hemihedral form of a square pyramid.
2.
(Anat.)
The sphenoid bone.
Webster 1828 Edition
Sphenoid
SPHENOID
, SPHENOID'AL,Adj.