or·ni·thop·ter 
(ôr′nə-thŏptər)
(ôr′nə-thŏptər)n.
A machine shaped like an aircraft that is held aloft and propelled by wing movements.
- closet
- closet drama
- closeted
- closetful
- close the book on
- close to heart
- close to home bone
- close to home/the bone
- close to/near the wind
- close to one's heart
- close to the bone
- close to the wind
- close to the wind
- close-up
- closing
- closing
- clostridial
- clostridium
- closure
- clot
- cloth
- clothbound
- clothe
- clothes
- clotheshorse