Exam: TOEFL

Definition: A device that measures the different wavelengths of light or other emissions, often used in scientific analysis.

Example: The scientist used a spectrometer to analyze the light spectrum from the star.

Definition: Relating to the measurement of light or other radiation using a device called a spectrometer.

Example: The spectrometric analysis revealed the composition of the unknown substance.

Definition: The process of measuring the wavelengths of light or other electromagnetic radiation to analyze the structure of molecules.

Example: Scientists use spectrometry to identify the composition of substances in a sample.

Definition: A tool used to create and study the different colors of light that come from objects, helping to analyze their properties.

Example: The scientist used a spectroscope to examine the light emitted by the star.

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.