entity set
Technical term in computing, especially in database modeling (e.g., ER diagrams). Refers to a collection of similar entities.
In an ER diagram, entity sets are represented by rectangles.
実体 means 'entity' or 'substance', while 実体集合 specifically refers to a set of entities in a database context.
Katakana loanword for 'entity set', often used interchangeably in technical documents.
character entity set
Compound of 実体 (entity) and 集合 (set), likely a calque from English 'entity set' used in database theory.