over-the-counter
adjective
uk/ˌəʊvəðəˈkaʊntər/ us( abbreviation OTC) FINANCE, STOCK MARKET
used to describe shares that are bought and sold directly using a computer system, rather than on a stock market:
over-the-counter shares/securities/options Brokers can use the system to look up prices or enter quotes for over-the-counter securities.
Over-the-counter trading of Malaysian issues continued to be active.
COMMERCE
available to buy from a store without a prescription (= written instruction from a doctor):
over-the-counter drug/medicine/product Strong sales of prescription and over-the-counter drugs helped boost the company's profits.