Definition: Relating to a type of volcanic ash that can be mixed with lime to create a strong building material that hardens when wet.

Example: The pozzolanic properties of the volcanic ash improved the durability of the concrete.

Definition: A soft, silvery metal that is part of the rare-earth elements. It is used to color glass and ceramics and is found in nature with other rare earths.

Example: Praseodymium is often used in the production of high-strength alloys.

Definition: A feature or trait that has developed in an ancestor and is used in a different way by its descendants, often due to evolution.

Example: The bird's ability to use its beak for cracking nuts is an example of preadaptation, as its ancestors used it for different purposes.

Definition: Changed or prepared in advance to be suitable for a specific environment or situation.

Example: The species was preadapted to survive in the harsh climate of the mountains.

Definition: A device that makes weak electrical signals stronger so they can be amplified further by other equipment.

Example: The musician used a preamplifier to enhance the sound quality of his guitar before it reached the main amplifier.

Definition: Put together in advance, usually in a factory, so that it is ready to use right away.

Example: The furniture came preassembled, making it easy to set up in my living room.

Definition: To have been put together in advance before being sold or used.

Example: The furniture was preassembled to make it easier for customers to set up at home.

Definition: Relating to the period before atomic energy or weapons were developed or used.

Example: The preatomic era was marked by different scientific advancements that did not involve nuclear technology.

Definition: Located in front of or above the central line of the body or a specific body part.

Example: The preaxial region of the limb is important for understanding its development.

Definition: To construct something in advance or before it is needed.

Example: The company decided to prebuild the houses to meet the demand quickly.

Definition: Referring to a structure or part of a structure that is made in advance and then moved to where it will be used, often to save time and effort in construction.

Example: The company offers prebuilt homes that can be set up quickly.