Exam: TOEFL

Definition: Small pieces of material that have broken off from something larger, often as a result of decay or erosion. This can include debris from natural processes or remnants of past activities.

Example: After the storm, the beach was covered in detritus, including broken shells and seaweed.

Definition: To push something down or away with force.

Example: The gardener had to detrude the weeds from the flower bed.

Definition: The process of a swollen area returning to its normal size after being enlarged, often used in medical contexts.

Example: After the injury, the doctor monitored the detumescence of the patient's ankle.

Definition: A type of color vision deficiency where a person has difficulty seeing green colors, often leading to confusion between green and other colors.

Example: People with deuteranopia may struggle to tell the difference between red and green traffic lights.

Definition: A condition where a person cannot see the color green or has difficulty telling green from purplish-red.

Example: People who are deuteranopic may confuse green with shades of red.

Definition: The process of replacing hydrogen atoms in a molecule with deuterium atoms, which are heavier isotopes of hydrogen.

Example: Deuteration is often used in scientific research to study molecular structures and reactions.

Definition: A type of hydrogen atom that has one proton and one neutron in its nucleus, making it heavier than regular hydrogen.

Example: Deuterium is often used in nuclear fusion experiments due to its unique properties.

Definition: A type of subatomic particle that is the nucleus of a deuterium atom, made up of one proton and one neutron, and has a positive charge.

Example: The deuteron is an important particle in nuclear reactions and fusion processes.

Definition: A group of animals that includes species like starfish and chordates, characterized by a specific type of embryonic development where the mouth does not form from the first opening in the embryo.

Example: Starfish are an example of a deuterostome, which develops differently from other animals during their early stages.

Definition: To reduce or lessen the value of something, often in terms of currency or worth.

Example: The government decided to devaluate the currency to boost exports.