Definition: Referring to a substance that rotates the plane of polarized light to the left.

Example: The levo form of the compound is used in many pharmaceuticals.

Definition: A substance similar to dextrin that comes from certain plants and produces levulose when it breaks down.

Example: Levulin is often used in the production of sweeteners and other food products.

Definition: A toxic liquid that can be used as a chemical weapon, known for causing severe skin blisters and other harmful effects.

Example: During World War I, lewisite was developed as a chemical weapon to incapacitate enemy soldiers.

Definition: A piece of land that is valued at one pound each year.

Example: The farmer sold his librate for a good price.

Definition: To move or swing back and forth in a steady manner, similar to how a balance beam moves.

Example: The scale began to librate as the weights were adjusted.

Definition: A substance, such as an ion or molecule, that attaches to another chemical entity to create a larger structure or complex.

Example: In biochemistry, a ligand can bind to a receptor to trigger a response in the cell.

Definition: A device that produces light when electricity passes through it, typically used in lamps and fixtures.

Example: I need to replace the lightbulb in the living room because it burned out.

Definition: Describing something that does not allow any light to pass through, meaning it is completely sealed against light.

Example: The lighttight box kept the contents safe from exposure to sunlight.

Definition: A material made from a mix of lignin and cellulose that provides strength to the cell walls of woody plants.

Example: Lignocellulose is an important component in the production of biofuels.

Definition: Relating to or derived from a type of plant material that consists of cellulose and lignin, often used in the context of biomass products.

Example: Lignocellulosic materials are important for producing biofuels.

Definition: A flammable liquid derived from petroleum, used mainly as a solvent in various applications.

Example: The chemist used ligroin to dissolve the organic compounds in the experiment.