You searched for: “allotropism”
allotropism (s) (noun), allotropisms (pl)
The existence of certain elements, in various forms differing in physical properties; such as, carbon black, graphite, and diamond are all pure carbon.
This entry is located in the following units: allo-, all- (page 11) tropo-, trop-, -tropal, -trope(s), -tropic, -tropism, -tropia, -tropous, -tropy, trep- (page 1)