Definition of abdominizer in English:

abdominizer

(also abdominiser)

noun

  • A piece of exercise apparatus on which the user lies supine and rocks backwards and forwards, flexing the abdominal muscles. Later also more generally: any of various different types of apparatus designed to exercise the abdominal muscles.

Origin

1980s; earliest use found in The Washington Post. From abdomin- + -izer.

Pronunciation:

abdominizer

/abˈdɒmɪnʌɪzə//əbˈdɒmɪnʌɪzə/