Exam: Cambridge English: C2 Proficiency (CPE)

Definition: Relating to a specific group of parasitic worms that reproduce both sexually and asexually, typically involving a vertebrate host and a mollusk.

Example: The digenetic life cycle of the trematode involves complex interactions between its hosts.

Definition: A colorless crystalline substance that is derived from digitoxin and has a specific chemical structure.

Example: Digitoxigenin is used in some medical research related to heart conditions.

Definition: In a manner that strays from the main topic or subject being discussed.

Example: The speaker digressively talked about his childhood before returning to the main point of his lecture.

Definition: Someone who is not serious about their interests and only engages in them at a surface level, often without deep knowledge or commitment.

Example: He is a dilettante in art, enjoying it casually but lacking any real expertise.

Definition: A person who takes a casual or superficial interest in something, especially in the arts or a specific field of knowledge.

Example: Although he was a dilettante in painting, he enjoyed visiting galleries and discussing art with friends.

Definition: The behavior of someone who is an amateur or dabbler in a field, especially in the arts, often without serious commitment or expertise.

Example: His dilettantism was evident in his casual approach to painting, as he only picked up a brush occasionally.

Definition: Related to a great flood or deluge.

Example: The diluvian landscape was shaped by the massive floods that occurred thousands of years ago.

Definition: Referring to plant species where individual plants have either male or female reproductive organs, but not both, meaning that male and female flowers are found on separate plants.

Example: The holly plant is dioecious, requiring both male and female plants to produce berries.

Definition: The state in which a species has male and female reproductive organs in separate individuals, rather than in the same individual.

Example: Many plants exhibit dioecism, meaning that some plants are male and others are female.

Definition: A unit used to measure how strongly a lens can bend light, which is calculated by taking the inverse of the distance from the lens to the point where it focuses light, measured in meters.

Example: The optometrist prescribed glasses with a diopter of -2.5 to correct my vision.

Definition: A chemical compound that has two oxygen atoms in each molecule.

Example: Carbon dioxide is produced when we breathe out.