Exam: Cambridge English: C2 Proficiency (CPE)

Definition: A colorless liquid that is a type of organic compound, used mainly in chemical processes and as a solvent.

Example: Acetonitrile is commonly used as a solvent in chemical reactions.

Definition: Relating to a specific type of stony meteorite that does not contain chondrules, which are small round particles found in some meteorites.

Example: The achondritic meteorite provided valuable insights into the early solar system.

Definition: A type of lens that reduces or eliminates color distortion, allowing for clearer images without the interference of colors.

Example: The photographer used an achromat to reduce color distortion in his images.

Definition: In a way that does not involve color or hue; relating to or characterized by the absence of color.

Example: The colors were displayed achromatically, emphasizing the shapes and forms instead.

Definition: A small, sac-like structure found in certain glands, which helps in producing and releasing substances like hormones or enzymes.

Example: The acinus is a crucial component of the pancreas, aiding in digestion.

Definition: Describing something that is at its highest point or peak.

Example: The acmatic point of the project was reached when all goals were successfully achieved.

Definition: A type of animal that does not have a body cavity filled with fluid, such as flatworms and tapeworms. These creatures have a simple structure with only a digestive cavity inside.

Example: Flatworms are a common example of acoelomates, as they do not have a coelom.

Definition: Describing an organism that does not have a true body cavity or digestive system.

Example: The acoelous organism does not possess a coelom, which is a characteristic of more complex animals.

Definition: Relating to a type of plant called aconite or to a specific acid derived from it.

Example: The aconitic properties of the plant were studied for their medicinal benefits.

Definition: To declare someone not guilty of a crime or to free them from a legal charge.

Example: The jury decided to acquit the defendant after reviewing the evidence.