The term "拘留所" (jūliú suǒ) is a Chinese compound noun formed through morphological derivation, where the morpheme "拘" (jū, meaning to detain or arrest) modifies "留" (liú, meaning to retain or hold), creating the core concept of "detention", which is then nominalized by the suffix "所" (suǒ, indicating a place or institution); thus, the word structurally and semantically means "a place or institution for detention", specifically referring to a detention center or holding facility.