Exam: TOEFL

Definition: The practice or belief in dealing with the devil or demons, often involving evil actions or sorcery.

Example: The novel explores themes of diabolism and its impact on the characters' lives.

Definition: To make someone or something seem evil or devilish.

Example: The media often diabolize public figures to create sensational stories.

Definition: A chemical compound with the formula C4H6O2, consisting of two acetyl groups. It is often used in flavoring and fragrance products.

Example: Diacetyl is commonly used to give a buttery flavor to popcorn.

Definition: In a way that relates to the changes and developments of something over time.

Example: The study of language diachronically helps us understand how it has evolved.

Definition: Able to react with two molecules of a simple acid or one of a two-acid compound to create a salt or ester.

Example: The diacid compound can be used to produce various types of polymers.

Definition: A type of acid that contains two hydrogen atoms that can be replaced by bases in a chemical reaction.

Example: Citric acid is a common diacid found in citrus fruits.

Definition: Relating to marks added to letters to change their pronunciation or meaning.

Example: The word 'café' uses a diacritic to indicate the correct pronunciation of the letter 'e'.

Definition: A symbol added to a letter to change its pronunciation or to help differentiate between words that look the same.

Example: In French, the word "café" uses a diacritic to show the correct pronunciation of the letter 'e'.

Definition: Relating to marks or signs that are used to indicate a difference in pronunciation or meaning of a word.

Example: The diacritical marks in the text helped clarify the pronunciation of the foreign words.

Definition: Referring to fish that migrate between saltwater and freshwater environments during different stages of their life cycle.

Example: Salmon are diadromous fish, as they travel from the ocean to freshwater rivers to spawn.

Definition: A symbol placed over a vowel to show that it is pronounced in a separate syllable, like in the word 'naïve'.

Example: The diaeresis in 'naïve' indicates that the 'a' and 'i' are pronounced separately.

Definition: Relating to a sharp or biting quality, often used to describe a tone or manner that is harsh or critical.

Example: Her diaeretic remarks during the meeting made everyone uncomfortable.