Exam: TOEFL

Definition: A unit of electrical potential equal to one million volts.

Example: The power plant generates electricity at a high voltage of several megavolts.

Definition: A unit of power that is equal to one million watts, often used to measure the output of power plants.

Example: The new solar farm has a capacity of 100 megawatts.

Definition: A type of cell division that occurs in sexually reproducing organisms, which reduces the chromosome number in reproductive cells, resulting in the formation of gametes or spores.

Example: Meiosis is essential for sexual reproduction as it produces gametes with half the number of chromosomes.

Definition: Related to the process of cell division that reduces the number of chromosomes in reproductive cells.

Example: During meiotic division, the chromosome number is halved to produce gametes.

Definition: A synthetic radioactive element with the atomic number 109, known for its very short half-life and produced in laboratories.

Example: Meitnerium is used in scientific research to study the properties of heavy elements.

Definition: A state of deep sadness or depression, often with feelings of hopelessness and withdrawal from life.

Example: After the loss of her friend, she fell into a state of melancholia that lasted for months.

Definition: Feeling or showing a deep sadness or sorrow, often without a clear reason.

Example: After hearing the sad news, she felt melancholic for the rest of the day.

Definition: Feeling or showing a deep sadness or sorrow; often reflective or thoughtful.

Example: She felt a sense of melancholy as she looked out at the rainy day.

Definition: A feeling of deep sadness or sorrow, often without a clear cause. It can also refer to a thoughtful or reflective mood.

Example: After hearing the sad news, a sense of melancholy filled the room.

Definition: A mixture or collection of different things, often of various types or styles.

Example: The artist's latest work is a melange of colors and textures that captivates the viewer.

Definition: Relating to or characterized by an increased amount of melanin, which can cause dark pigmentation in organisms.

Example: The melanic form of the butterfly is much darker than its lighter counterparts.

Definition: A type of organism that has a dark pigmentation, often due to an excess of melanin.

Example: The melanic form of the butterfly is more common in areas with high sunlight exposure.