Definition of shell heap in English:
A mound of domestic waste consisting mainly of shells, common at prehistoric sites.
- The day after his arrival in Yokohama (it was 1877, he was thirty-nine) he noticed from a train window some odd shell heaps that he guessed would be ancient burial mounds.
- The oyster shell heaps of Damariscotta and Newcastle date back at least 2,400 years.
- The enormous shell heap of Whaleback can be found on the east side of the Damariscotta River.