You searched for: “allomerism”
allomerism (s) (noun), allomerisms (pl)
Substances with a different chemical composition but the same crystalline form: Consistence in crystalline shape accompanied by variation in chemical composition is termed allomerism.
This entry is located in the following units: allo-, all- (page 6) mer-, mero-, meri-, -mer, -merous, -mere, -meric, -meristic + (page 1)