合がっ併ぺい集しゅう合ごう

が

っ

ぺ

い

しゅ

う

ご

う

Meanings

1

noun

union (set theory)

mathematics

Mathematical term for the union of sets. Synonymous with 和集合 (わしゅうごう).

Kanji

合fit, suit, join
併join, get together, unite
集gather, meet, congregate

Similar words

和わ集しゅう合ごう
Synonym; both mean 'union' in set theory. 合併集合 is less common than 和集合.
積せき集しゅう合ごう
Antonym; means 'intersection' of sets.

Etymology

Compound of 合併 (がっぺい, 'merger, union') and 集合 (しゅうごう, 'set'). The term is a direct calque from English 'union set' or similar mathematical terminology.