Exam: TOEFL

Definition: A line that shows where a specific language feature is used or found in different areas.

Example: The isogloss on the map indicates where people use different words for the same object.

Definition: A piece of tissue that is taken from a donor who has the same genetic makeup as the person receiving it.

Example: The surgeon used an isograft to ensure the best chance of acceptance by the patient's body.

Definition: A word or phrase in which no letter occurs more than once.

Example: The word 'lumberjack' is an isogram because it has no repeating letters.

Definition: Being alone or separated from others.

Example: He felt isolated in the crowded room.

Definition: A person or thing that has been separated from others, often due to barriers or conditions that keep it apart.

Example: The scientist studied an isolate of the bacteria to understand its unique properties.

Definition: To separate something from others, often to keep it alone or in a pure form.

Example: The scientist decided to isolate the bacteria for further study.

Definition: Being alone or separated from others; not connected or part of a group.

Example: The isolated cabin in the woods was the perfect place for a quiet retreat.

Definition: The state of being separated from others or being alone.

Example: After the storm, the town was in complete isolation for several days.

Definition: A national policy where a country avoids political or economic connections with other nations.

Example: During the 1930s, the United States adopted a policy of isolationism to avoid involvement in foreign conflicts.

Definition: Relating to a policy of avoiding political or economic involvement with other countries.

Example: The politician's isolationist views were evident in his speeches about foreign relations.

Definition: A person who believes in or supports a policy of avoiding involvement in international affairs or alliances.

Example: The politician was known as an isolationist, preferring to keep the country out of foreign conflicts.

Definition: A necessary building block for proteins that the body cannot produce on its own, and must be obtained from food.

Example: Isoleucine is important for muscle repair and energy production.

Definition: A type of substance that has the same elements and proportions as another but has a different arrangement of atoms, leading to different properties.

Example: Glucose and fructose are isomers because they have the same chemical formula but different structures.