specimen

• 单独的样品、实例或标本，常用于研究或代表更大的群体、物种或类别；广泛应用于科学、医学和技术领域。

An individual example or sample of something, often taken or studied to represent a larger group, species, or category. It is commonly used in scientific, medical, or technical contexts to refer to a single instance examined for research, testing, or illustration purposes, such as a biological sample, rock fragment, or manufactured item.

1. Scientific or biological sampleB2formalscientific

   A single example of a plant, animal, mineral, tissue, or other natural item collected or prepared for detailed study, analysis, or display in scientific research, museums, or laboratories. It serves as a representative unit that allows researchers to understand characteristics of the broader category without examining every individual.

   科学或生物样本

   • The biologist carefully preserved the rare insect in a glass case for further examination.
   • Doctors collected a blood one to test for signs of infection.
   • Geologists brought back rock ones from the expedition to analyze their composition.
   • The museum exhibition featured hundreds of butterfly ones from around the world.
   • Researchers examined plant ones under the microscope to identify new species.

   同义词exampleexemplarinstancerepresentativesampletype

2. Example or illustrationB2formal

   A typical or representative instance of a particular type, quality, or category, often used to demonstrate features, standards, or variations. This can apply to manufactured goods, documents, artworks, or abstract concepts shown as evidence or for comparison.

   标本或示例

   • This contract serves as a fine one of clear legal writing.
   • The teacher showed a perfect one of student work to the class.
   • Engineers tested several material ones before choosing the best for production.
   • Her behavior was a classic one of someone under extreme stress.
   • The catalog includes color ones of every available design.

   同义词caseexampleexemplarillustrationinstancemodelrepresentativesample

3. Medical or laboratory test sampleB2formalmedical

   A small quantity of blood, urine, tissue, or other bodily material collected from a person for diagnostic testing, research, or monitoring health conditions in a clinical or laboratory setting.

   医学或实验室样本

   • The laboratory analyzed the urine one for signs of kidney problems.
   • Patients are asked to provide a stool one for certain medical screenings.
   • The technician labeled each blood one with the patient's identification number.
   • Fresh tissue ones are essential for accurate pathology results.
   • Researchers stored frozen ones for long-term genetic studies.

   同义词aliquotsample