noun
The sport of synchronized swimming. The official name was changed to アーティスティックスイミング (artistic swimming) in 2017, but this term remains widely understood.
See also: アーティスティックスイミング
彼女は子供の頃、シンクロナイズドスイミングを習っていた。
She used to take synchronized swimming lessons when she was a child.
Variant with interpunct; less common but still seen.
The current official name for the sport, adopted in 2017. シンクロナイズドスイミング is the older, still commonly used term.
Borrowed from English 'synchronized swimming'.