Exam: IELTS

Definition: Feeling or showing deep, often sad or reflective thought.

Example: She sat by the window with a pensive look on her face, lost in her thoughts.

Definition: In a way that shows deep thought or reflection.

Example: She stared pensively out the window, lost in her thoughts.

Definition: A state of deep thought or reflection, often with a feeling of sadness or longing.

Example: She sat by the window in a state of pensiveness, lost in her thoughts.

Definition: A shape with five sides and five angles, or a specific building in Washington, D.C. that houses the U.S. Department of Defense.

Example: The Pentagon is an important symbol of the U.S. military.

Definition: This word describes something that has five sides and five angles, like a shape or figure.

Example: The architect designed a pentagonal building that stood out in the city.

Definition: A line in poetry that has five sets of stressed and unstressed syllables.

Example: Shakespeare often wrote in iambic pentameter, giving his plays a rhythmic quality.

Definition: Pentane is a type of hydrocarbon that consists of five carbon atoms and twelve hydrogen atoms. It is colorless and flammable, and is often found in petroleum. It is used in various applications, including as a solvent.

Example: Pentane is commonly used in laboratories as a solvent for chemical reactions.

Definition: Pentanol is a type of alcohol that has five carbon atoms in its structure. It is often found in fusel oil and can exist in different forms called isomers.

Example: Pentanol is used in the production of various chemicals and as a solvent.

Definition: A type of molecule made up of five linked amino acids.

Example: The scientist studied the effects of a specific pentapeptide on cell growth.

Definition: Describing an organism or cell that has five sets of chromosomes, which is five times the basic number of chromosomes.

Example: The plant species is classified as pentaploid due to its unique chromosome structure.

Definition: An organism or cell that has five sets of chromosomes instead of the usual two sets found in diploid organisms.

Example: The pentaploid plant showed unique characteristics compared to its diploid relatives.