u·ni·cos·tate 
(y′nĭ-kŏstāt′)
(y′nĭ-kŏstāt′)adj.
Having a single main costa, rib, or riblike part: a unicostate leaf.
- gastroesophageal sphincter
- gastrointestinal
- gastrolith
- gastrologic
- gastrological
- gastrologically
- gastrologist
- gastrology
- gastronome
- gastronomer
- gastronomic
- gastronomical
- gastronomically
- gastronomist
- gastronomy
- gastroparesis
- gastropod
- gastropub
- gastroscope
- gastroscopic
- gastroscopist
- gastroscopy
- gastrostomy
- gastrotomy
- gastrotrich