Definition: A type of insect belonging to the order Plecoptera, commonly known as stoneflies, which are typically found in clean, cold water environments.

Example: The plecopteran larvae are important indicators of water quality in streams.

Definition: Relating to a genetic condition where one gene influences multiple traits or characteristics.

Example: The pleiotropic effects of the gene can lead to various health issues in individuals.

Definition: The effect of one gene on several different traits or characteristics in an organism.

Example: Pleiotropy can explain why certain genetic disorders affect multiple systems in the body.

Definition: The idea that every part of space is occupied by matter.

Example: The theory of plenism suggests that there is no empty space in the universe.

Definition: A person who believes that all space is filled with matter and that a vacuum does not exist.

Example: The plenist argued that even the emptiest regions of space contain some form of matter.

Definition: A large amount of something; a state of having more than enough of what is needed.

Example: The garden was filled with a plentitude of flowers in every color.

Definition: A space or condition where air or gas is at a higher pressure than the surrounding atmosphere, or a meeting where all members are present.

Example: The engineers discussed the design of the ventilation system in the plenum.

Definition: Describing a material that shows different colors when viewed from different angles due to the way it absorbs light.

Example: The pleochroic mineral displayed stunning colors as I rotated it under the light.

Definition: A characteristic of certain crystals that display different colors when viewed from different angles or with polarized light.

Example: The pleochroism of the gemstone made it appear to change color as I turned it in the light.

Definition: Relating to the ability to take on different shapes or forms.

Example: Some bacteria are pleomorphic, meaning they can change their shape depending on the environment.