Home › Words › H › heteroplateheteroplateheteroplate means A sheet of culture medium designed to allow the formation (and subsequent counting) of heterotrophic bacterial colonies, especially as a means of evaluating drinking water.EtymologyFrom hetero- + plate.nounA sheet of culture medium designed to allow the formation (and subsequent counting) of heterotrophic bacterial colonies, especially as a means of evaluating drinking waterDefinitions & examples from Wiktionary (CC BY-SA 3.0).