Function: adjective
Date: 1921
1 : not traded or effected on an organized securities exchange < over-the-counter transactions> < over-the-counter securities>
2 : sold lawfully without prescription <an over-the-counter pain reliever>
OVER-THE-COUNTER
Meaning of OVER-THE-COUNTER in English
Merriam Webster Collegiate English Dictionary. Merriam Webster - Энциклопедический словарь английского языка. 2012