noun
descendant structure
Computing term for a data structure that inherits from or is derived from a parent structure, often in object-oriented or hierarchical data contexts.
このプログラムでは、子孫構造体が親構造体のメンバを継承する。
In this program, the descendant structure inherits the members of the parent structure.
親構造体 is the parent structure from which 子孫構造体 inherits or derives.
Compound of 子孫 (descendant) + 構造体 (structure). A technical term likely calqued from English 'descendant structure' in computing contexts.