Definition: A three-dimensional shape that has five flat surfaces or faces.

Example: The architect designed a unique building shaped like a pentahedron.

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.

Definition: A type of organic compound that consists of five carbon atoms and contains one double bond between carbon atoms.

Example: Pentene is commonly used in the production of plastics and other chemicals.

Definition: A yellowish-brown mineral that contains nickel and iron, and is the main source of nickel used in various applications.

Example: Pentlandite is often found in nickel mines as the primary ore for extracting nickel.

Definition: A type of electronic device that controls the flow of electricity, consisting of five electrodes, and is used in audio and radio equipment.

Example: The engineer replaced the old tube with a new pentode to improve the sound quality of the amplifier.

Definition: A chemical compound that consists of five oxygen atoms bonded to another element or group.

Example: Pentoxide is often used in various chemical reactions and processes.

Definition: A type of hydrocarbon chain that consists of five carbon atoms, often used in organic chemistry and as a part of various chemical compounds.

Example: Pentyl groups are commonly found in organic molecules and can influence their properties.