Key vocabulary words with IPA pronunciation, definitions, example sentences, and interactive quizzes.
Phrases with type tags, bilingual definitions, usage notes, and example sentences.
To reveal or uncover something that was previously hidden or secret.
To receive the worst part of something unpleasant or harmful.
A decisive test in which a single factor determines the overall quality or condition of something.
An implicit agreement among the members of a society to cooperate for social benefits.
The quality of being extremely thorough, exhaustive, and accurate in scientific research.
A newly identified or mutated infectious agent that has not been previously seen in a specific population.
Based on valid, logical, and scientifically accurate principles of epidemiology.
The total amount of emotional or mental damage or suffering caused by a particular event.
Personnel who perform services that are vital to the maintenance of safety, health, and essential operation of society.
The underlying technology or basic structure used to develop and manufacture a vaccine.
The fundamental structure or essential parts of a system of government.