Exam: GRE (Verbal)

Definition: Having or occurring in two different forms or shapes.

Example: The species is dimorphous, exhibiting two distinct types of flowers.

Definition: A type of chemical compound that contains two nitro groups attached to a benzene ring, often used in the production of dyes and other chemicals.

Example: Dinitrobenzene is commonly used in the manufacture of explosives and dyes.

Definition: A type of chemical compound that is made from phenol and contains nitrogen and oxygen; it is known for being toxic and is used in some pesticides.

Example: Dinitrophenol is often used in laboratories for various chemical reactions.

Definition: A tiny, single-celled organism found mainly in the ocean, which has two whip-like structures called flagella. These organisms are important in the food chain and can sometimes cause harmful events like red tide.

Example: The dinoflagellate caused the water to glow at night due to its bioluminescent properties.

Definition: A type of molecule made up of two smaller units called nucleotides, which are the building blocks of DNA and RNA.

Example: Dinucleotides play a crucial role in the structure of DNA and RNA.

Definition: A small electronic component that allows electricity to flow in one direction only, often used to convert alternating current to direct current.

Example: The technician replaced the faulty diode in the circuit to restore proper function.

Definition: The state in which a species has male and female reproductive organs in separate individuals, rather than in the same individual.

Example: Many plants exhibit dioecism, meaning that some plants are male and others are female.

Definition: A type of hydrocarbon that contains two double bonds between carbon atoms.

Example: Diolefins are important in the production of synthetic rubber.

Definition: Related to the bending of light to help with vision or optics.

Example: The dioptric properties of the lens improve the clarity of the image.

Definition: A clear, colorless liquid that can catch fire and is used to dissolve substances like fats and resins in products such as paints and cosmetics.

Example: Dioxane is often used in laboratories as a solvent for various chemical reactions.