Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
over-the-counter is an adjective meaning "purchasable without a doctor's prescription". It carries 2 recorded senses.
purchasable without a doctor's prescription
“nonprescription drugs”
“an over-the-counter cold remedy”
medicine
Definitions, synonyms and semantic relations for over-the-counter come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.