Exam: Cambridge English: C1 Advanced (CAE)

Definition: A type of molecule made up of two amino acids connected together by a bond.

Example: Dipeptides are important in the study of protein structure and function.

Definition: Describing something that has or occurs in two distinct stages or phases.

Example: The diphasic nature of the experiment allowed researchers to observe changes over time.

Definition: A chemical compound made up of two phenyl groups connected by a single bond, often used in organic chemistry and as a solvent.

Example: Diphenyl is commonly used in the synthesis of various organic compounds.

Definition: A colorless solid chemical compound used in making dyes, plastics, and other products.

Example: Diphenylamine is often used as a stabilizer in the production of certain plastics.

Definition: A chemical compound that has two phosphate groups, often involved in biological processes.

Example: Adenosine diphosphate (ADP) is an important molecule in energy transfer within cells.

Definition: A sound made by combining two vowel sounds in one syllable, where the sound starts as one vowel and glides into another, like the sound in the word 'coin'.

Example: In English, the word 'coin' contains a diphthong.

Definition: Related to a specific type of vowel sound that begins with one vowel and glides into another within the same syllable.

Example: In phonetics, a diphthongal sound can be heard in the word 'coin'.

Definition: To pronounce a vowel sound that starts as one vowel and glides into another within the same syllable.

Example: In some dialects, speakers tend to diphthongize certain vowel sounds, making them sound more complex.

Definition: Relating to a group of organisms that have descended from two different ancestral sources.

Example: The diphyletic classification of certain species highlights their diverse evolutionary backgrounds.

Definition: Describing animals that have two sets of teeth during their lifetime, first temporary teeth and then permanent ones.

Example: Humans are diphyodonts because they first have baby teeth that fall out and are replaced by adult teeth.