Definition: Describing a material that expands in size when it is stretched, which is the opposite of most materials that typically shrink.

Example: The auxetic material demonstrated unique properties by becoming thicker when pulled.

Definition: Describing something that provides help or support, or is used as a backup or additional resource.

Example: The auxiliary staff helped the main team complete the project on time.

Definition: A person or thing that helps or supports another, often in a secondary role.

Example: The auxiliary provided assistance to the main team during the project.

Definition: A type of hormone found in plants that helps control their growth and development by promoting cell elongation and regulating other growth processes.

Example: Auxin plays a crucial role in the growth of plant shoots and roots.

Definition: Related to a class of plant hormones that promote growth and development.

Example: The auxinic properties of the substance helped the plants grow taller and healthier.

Definition: An organism that cannot produce certain necessary substances for growth and metabolism due to genetic changes.

Example: The auxotroph required specific nutrients that its wild-type counterpart could produce on its own.

Definition: Describing organisms that need specific substances for growth and metabolism that they can no longer produce themselves due to mutations.

Example: The auxotrophic strain of bacteria requires additional nutrients to grow in the lab.

Definition: The condition where a microorganism cannot produce a necessary organic compound for its growth, usually due to a genetic change.

Example: The auxotrophy of the bacteria made it dependent on external sources of nutrients.

Definition: Not connected to or having blood vessels.

Example: The avascular tissue does not receive nutrients directly from the blood.

Definition: The state of having no blood vessels or lacking a blood supply.

Example: The avascularity of the tissue made it difficult for it to heal properly.

Definition: A type of mineral or glass that is often green or brown and has shiny particles inside it, making it look sparkly or glittery.

Example: She wore a beautiful necklace made of aventurine that sparkled in the sunlight.