Definition: A bitter and poisonous substance that comes from a specific vine and is used as a stimulant, particularly to treat certain types of poisoning.

Example: Doctors sometimes use picrotoxin as an antidote for barbiturate overdoses.

Definition: A symbol or image that represents a word or idea, often used to convey information visually, especially in graphs or charts.

Example: The teacher used a pictograph to show the number of students who preferred different types of fruit.

Definition: In a manner that involves separate parts or segments, rather than as a whole.

Example: The function is defined piecewise, meaning it has different rules for different intervals.

Definition: To go through or into something, often with a sharp object or force.

Example: The rocket pierced through space.

Definition: To cut through something with a sharp object or to make a hole in it.

Example: She used a needle to pierce the fabric for sewing.

Definition: Relating to the ability of certain materials to generate an electric charge when they are subjected to mechanical stress.

Example: The piezoelectric sensor converts pressure into an electrical signal.

Definition: A type of material that generates an electric charge when it is squeezed or deformed.

Example: The engineer used a piezoelectric sensor to measure pressure changes.

Definition: A device used to measure the pressure of liquids or gases, particularly in situations involving high pressure.

Example: The engineer used a piezometer to monitor the pressure levels in the water reservoir.

Definition: Related to a device used to measure the pressure of fluids, especially water in the ground.

Example: The piezometric level indicates how much pressure is present in the aquifer.

Definition: A type of mineral that belongs to the pyroxene group, characterized by its monoclinic crystal structure and composed of a mix of calcium, magnesium, and iron silicates.

Example: Pigeonite is often found in volcanic rocks and is important for understanding the geology of Mars.

Definition: A material that gives color to other substances, often used in paints, inks, and other products.

Example: The artist chose a bright pigment to make her painting more vibrant.

Definition: To add color to something using a substance that gives it color.

Example: The artist decided to pigment the canvas with bright colors.

Definition: Relating to color or pigment, often used in contexts like art or biology to describe substances that give color to materials or organisms.

Example: The artist used a variety of pigmentary substances to create vibrant colors in her painting.