IPA: /ˌɛəˈroʊbɪkaɪzd/
KK: /ɛəˈroʊbɪkaɪzd/
Describing someone or something that has been made fit or toned through aerobic exercise.
After months of training, she felt more aerobicized than ever before.
Aerobicized is formed from "aerobic" (from Greek "aerobios", meaning living in the presence of air) and "-ize" (a suffix meaning to make or to become). The word refers to the process of making something aerobic or adapting it to be suitable for aerobic conditions.
Think of 'aerobic' as relating to air and 'to make' something — so 'aerobicized' means to make something suitable for living in the presence of air.