car·di·o 
(kärdē-ō) Informal
(kärdē-ō) Informal adj.
Cardiovascular.
n.
Exercise that increases heart rate.
- unalterable
- unalterableness
- unalterably
- unambiguous
- unambiguously
- un-American
- Unami
- Unamuno
- unanalyzable
- unanalyzably
- unaneled
- unanimity
- unanimous
- unanimously
- unanimousness
- unannounced
- unanswerability
- unanswerable
- unanswerableness
- unanswerably
- unanticipated
- unanticipatedly
- unapologetic
- unapologetically
- unappealable