wind·suck·ing 
(wĭndsŭk′ĭng)
(wĭndsŭk′ĭng)n.
The injurious habit of drawing in and swallowing air. Used of horses.
windsuck′er n.
- protodermal
- protogalaxy
- Proto-Germanic
- protogynous
- protogyny
- protohistorian
- protohistoric
- protohistory
- protohuman
- Proto-Indo-European
- protolanguage
- protolithic
- protomartyr
- protomorph
- protomorphic
- proton
- protonema
- protonemal
- protonematal
- protonic
- protonotary
- protonotary
- protonotary apostolic
- proton-proton chain
- proton pump inhibitor