berthollide
noun
ber·thol·lide
ˈbər-thə-ˌlīd;
(ˌ)bər-ˈthä-ˌlīd,
-ləd
plural -s
: a solid chemical compound (such as some metallic hydrides and the tungsten bronzes) that does not conform to the law of definite proportions : a nonstoichiometric compound —distinguished from daltonide
Word History
Etymology
C.L. Berthollet + English -ide