noun, noun or participle which takes 'suru'
aerobic exercise; aerobics; doing aerobics
Refers to the activity of doing aerobic exercise, often in a class setting. Can be used as a noun or with する to mean 'do aerobics'.
毎朝エアロビサイズをしている。
I do aerobics every morning.
彼女はエアロビサイズのインストラクターだ。
She is an aerobics instructor.
エアロビクス is the more common term for 'aerobics' as a fitness system. エアロビサイズ is a less common variant that emphasizes the exercising aspect.
Loanword from English 'aerobics' + 'exercise', blended into 'aerobicise'.