Exam: TOEFL

Definition: The process of creating heavier elements from lighter ones, particularly hydrogen, inside stars.

Example: Nucleosynthesis occurs in the cores of stars where temperatures and pressures are extremely high.

Definition: Relating to the process by which new atomic nuclei are created, especially in stars.

Example: The nucleosynthetic processes in stars lead to the formation of heavier elements from lighter ones.

Definition: A type of compound that is made up of a sugar, a base, and a phosphate group, and is an essential building block of DNA and RNA.

Example: Nucleotides are crucial for storing and transferring genetic information in living organisms.

Definition: The central or most important part of something, often surrounded by other parts; it can refer to a core in various contexts like biology, astronomy, or botany.

Example: The nucleus of the cell contains the genetic material that controls its functions.

Definition: A specific kind of atom that is defined by its number of protons, number of neutrons, and energy state.

Example: Carbon-14 is a well-known nuclide used in dating ancient organic materials.

Definition: To make a gentle push or poke, often to get someone's attention or to encourage them to do something.

Example: She nudged him to remind him to pay attention during the meeting.

Definition: A gentle push or encouragement to do something.

Example: She gave him a nudge to remind him to pay attention.

Definition: To push someone or something gently, often to get their attention or to encourage them to do something.

Example: She gave him a nudge to remind him to pay attention during the meeting.

Definition: A person or thing that causes trouble, annoyance, or inconvenience to others.

Example: The loud music from the party was a nuisance to the neighbors.

Definition: The act of canceling or making something void, especially in a legal context where a state refuses to enforce a federal law.

Example: The nullification of the law led to significant debates about states' rights.

Definition: Something that has been made invalid or without legal force.

Example: The contract was nullified after the discovery of fraud.

Definition: To make something invalid or void; to cancel or invalidate an effect or decision.

Example: The new law nullified the previous regulations.

Definition: To make something invalid or without effect; to cancel out the importance or value of something.

Example: The new law will nullify the previous regulations that were in place.