The term "East Indiaman" refers to a type of merchant ship that was primarily used by European trading companies, especially the British East India Company, during the 17th to 19th centuries. These ships were designed for long voyages to the East Indies, carrying valuable cargo such as spices, textiles, and tea. Their robust construction and large size allowed them to withstand the challenges of ocean travel. East Indiamen typically featured three masts and were rigged as full-rigged ships, enabling them to sail efficiently across vast distances. They played a crucial role in the expansion of trade and colonial influence in Asia, significantly impacting global commerce during their time.