P3O1L1Y4T1Y4P3E1S1
19 points
POLYTYPES is validvalid
POLYTYPE, a crystal structure
POLYTYPE, to produce by use of a cast, or facsimile copy, of an engraved block, matter in type, etc.
POLYTYPE, a crystal structure
POLYTYPE, to produce by use of a cast, or facsimile copy, of an engraved block, matter in type, etc.