Definition: A type of strong and heat-resistant synthetic fiber used in various applications, including aerospace and military.

Example: The jacket was made from aramid fibers, making it both lightweight and durable.

Definition: A type of weapon from medieval times that uses a mechanism to launch missiles, similar to a crossbow.

Example: The knight skillfully aimed the arbalest at the target during the tournament.

Definition: A person who uses a crossbow, especially during the Middle Ages for hunting or warfare.

Example: The arbalist took aim at the target with great precision.

Definition: To move or shape in a curved line or path.

Example: The bird began to arc gracefully through the air.

Definition: A part of a circle or something that is curved in shape, like a rainbow or the path of a celestial body in the sky.

Example: The rainbow formed a beautiful arc across the sky after the rain.

Definition: Relating to a group of single-celled microorganisms that are distinct from bacteria and eukaryotes, often found in extreme environments.

Example: The archaeal species thrive in hot springs and deep-sea vents.

Definition: A type of single-celled microorganism that belongs to the domain Archaea, often found in extreme environments.

Example: Scientists discovered a new archaebacterium thriving in the hot springs.

Definition: A type of single-celled organism that is different from bacteria and often lives in extreme environments.

Example: Archaea are known for their ability to survive in harsh conditions, such as hot springs and salt lakes.

Definition: The central space in the early stage of an embryo that develops into the digestive system.

Example: During embryonic development, the archenteron forms the initial gut structure.

Definition: Shaped like a curve or arch.

Example: The bridge has an arciform design that adds elegance to the landscape.

Definition: A measurement used for dry goods in some Middle Eastern countries, which is equal to 198 liters in Egypt but can differ in other places.

Example: The farmer sold his grain by the ardeb, ensuring he had the correct amount for his customers.