Definition: A type of feather found on a bird's tail that helps control its direction while flying.

Example: The eagle adjusted its flight by moving its rectrices.

Definition: A term used to refer to any of several straight muscles in the body, such as those found in the abdomen, eye, neck, and thigh.

Example: The rectus muscles play an important role in stabilizing the body during movement.

Definition: To happen or appear again after a period of time; to occur repeatedly.

Example: The same problem tends to recur every few months.

Definition: The act of happening again or returning, especially in relation to symptoms of a disease or an event that occurs repeatedly.

Example: The recurrence of the disease prompted the doctors to change the treatment plan.

Definition: Happening or appearing again and again over time.

Example: The recurrent meetings help keep everyone updated on the project.

Definition: A method in mathematics and computer science where a function or process repeats itself, using the results of previous steps to generate new results.

Example: In programming, recursion allows a function to call itself to solve complex problems more easily.

Definition: Relating to a process that repeats itself or refers back to itself, often used in programming and mathematics.

Example: The recursive function calculates the factorial of a number by calling itself with a smaller number.

Definition: In a way that involves repeating a process or referring back to itself.

Example: The function calls itself recursively to solve the problem more efficiently.

Definition: The quality of being able to repeat or refer back to itself in a process or structure.

Example: The recursiveness of the algorithm allows it to solve complex problems efficiently.

Definition: The ability of a material to be processed and used again after its initial use.

Example: The recyclability of plastic products is important for reducing waste.