Key vocabulary words with IPA pronunciation, definitions, example sentences, and interactive quizzes.
Phrases with type tags, bilingual definitions, usage notes, and example sentences.
A clinical term used to describe cases of major depressive disorder that do not respond adequately to appropriate courses of at least two antidepressants.
A process designed by the FDA to expedite the development and review of drugs that are intended to treat a serious condition and preliminary clinical evidence indicates that the drug may demonstrate substantial improvement over available therapy.
An important change that happens when the usual way of thinking about or doing something is replaced by a new and different way.
A risky action or decision that ultimately results in success.