Definition: The study or measurement of the properties of air that contains moisture, especially in relation to temperature and humidity.

Example: Psychrometry is essential for understanding how humidity affects air conditioning systems.

Definition: Describing organisms that grow well in cold environments or at low temperatures.

Example: Psychrophilic bacteria can be found in icy waters and glaciers.

Definition: A plant and its seeds that are used as a mild laxative and a source of soluble fiber, known for swelling and becoming gelatinous when wet.

Example: I added psyllium to my smoothie for extra fiber.

Definition: A type of chemical compound that has a specific ring structure made of two fused rings, one being pyrimidine and the other being pyrazine. These compounds can be found in various biological pigments.

Example: Pteridine compounds are important in the study of animal pigments and biological processes.

Definition: This word describes something that is connected to the study of ferns, which are a type of plant.

Example: The pteridological research revealed new species of ferns in the rainforest.

Definition: A person who studies ferns and similar plants.

Example: The pteridologist explained the different species of ferns found in the rainforest.

Definition: The branch of botany that focuses on the study of ferns and their relatives.

Example: She is pursuing a degree in pteridology to learn more about ferns and their ecosystems.

Definition: A type of plant that reproduces using spores instead of seeds, including ferns and similar plants like club mosses and horsetails.

Example: The garden was filled with various pteridophytes, showcasing the beauty of ferns and mosses.

Definition: An extinct group of seed-producing plants that resemble ferns and belong to the division Pteridophyta.

Example: Pteridosperms were once widespread during the Mesozoic era, thriving in various environments.

Definition: A type of chemical compound that plays a role in coloring in nature and is part of folic acid.

Example: Pterin compounds are important in the study of biological pigments.