‘链式’ (liàn shì) is an adjective meaning 'chain-style' or 'chained', describing something organized, connected, or propagated in a sequential, linked manner—like links in a chain. The character 链 (liàn) means 'chain', evoking physical connection or continuity, while 式 (shì) means 'style', 'type', or 'form', indicating a pattern or method. Together, they form a compound that emphasizes structural interdependence and linear progression.

This term is frequently used in scientific, technical, and ecological contexts—for example, describing how certain animal behaviors spread through social groups (e.g., alarm calls triggering cascading responses), or how diseases transmit across interconnected populations. It also appears in computing (chain-style algorithms) and education (chain-style learning), but its most accessible usage for learners relates to natural phenomena involving animals, such as predator-prey dynamics or cooperative breeding systems where actions ripple through a group.