Exam: IELTS

Definition: Related to the study of the interaction between light and matter, often using instruments to analyze the spectrum of light.

Example: The scientists used a spectroscopic method to analyze the chemical composition of the stars.

Definition: A scientist who studies the interaction between light and matter using a technique called spectroscopy.

Example: The spectroscopist analyzed the light spectrum to identify the chemical composition of the sample.

Definition: The study of light and its interaction with matter, often used to analyze the composition of substances by observing their spectra.

Example: Scientists use spectroscopy to identify the chemical makeup of distant stars.

Definition: A wide range of related qualities, ideas, or activities that can be represented or measured.

Example: The artist explored the full spectrum of emotions in her paintings.

Definition: To think about something and make guesses or ideas about it without having all the facts.

Example: Many people speculate about the reasons for his sudden departure.

Definition: The act of forming ideas or theories about something without firm evidence; often involves guessing or making assumptions.

Example: The stock market is often influenced by speculation about future economic conditions.

Definition: Relating to ideas or guesses about what might happen in the future, often involving risk or uncertainty.

Example: Investors often buy speculative stocks in hopes of making a large profit.

Definition: In a way that involves guessing or making assumptions without firm evidence.

Example: The investors acted speculatively, hoping to profit from the uncertain market conditions.

Definition: A person who makes risky investments in the hope of making a profit, often by buying and selling stocks, real estate, or other assets.

Example: The speculator bought shares in the company, hoping their value would increase.

Definition: A formal talk given to an audience, often to express thoughts or ideas.

Example: The president delivered a powerful speech at the ceremony.