thun·der·head 
(thŭndər-hĕd′)
(thŭndər-hĕd′)n.
The swollen upper portion of a thundercloud, usually associated with the development of a thunderstorm.
- Central Karroo
- centrally
- central nervous system
- Central Park
- central processing unit
- Central Standard Time
- Central Valley
- centre
- centri-
- centri-
- -centric
- centric
- centrical
- centrically
- centricity
- centrifugal
- centrifugal force
- centrifugalism
- centrifugally
- centrifugation
- centrifuge
- centriole
- centripetal
- centripetal force
- centripetally