(math) a state or set of states toward which a system tends to evolve over time in a dynamical system

(Chinese medicine) an ingredient added to a prescription to guide the main medicine to a specific part of the body or to enhance its effectiveness; also called [[药引|藥引|yao4 yin3]]

A type of recurrent dynamical network that evolves toward a stable state over time; common in models of memory and neural processing.

enzyme involved in the replication of DNA that synthesizes a short RNA segment called a primer