A1L1L1O1T1R1O1P3E1S1
12 points
ALLOTROPES is validvalid
ALLOTROPE, one of multiple forms of an element which exhibits allotropy [n]
ALLOTROPE, an allotropic form of a substance [n]
ALLOTROPE, one of multiple forms of an element which exhibits allotropy [n]
ALLOTROPE, an allotropic form of a substance [n]