Noah Webster
Octodecimal
OCTODEC'IMAL, adjective [Latin octo, eight, and decem, ten.]
In crystallography, designating a crystal whose prisms, or the middle part, has eight faces, and the two summits together ten faces.
OCTODEC'IMAL, adjective [Latin octo, eight, and decem, ten.]
In crystallography, designating a crystal whose prisms, or the middle part, has eight faces, and the two summits together ten faces.