Ornithischia
plural noun
Or·nith·is·chia ˌȯrnə-ˈthi-skē-ə 
: an order of archosaurian reptiles comprising the ornithischians
Word History
Etymology
New Latin, from ornith- + -ischia (from Greek ischion hip joint)
- Elasmotherium
- elast-
- elastances
- elastase
- elastases
- elastic
- elastic afterwork
- elastic afterworking
- elastic band
- elastic bitumen
- elastic constant
- elastic currency
- elastic curve
- elastic deformation
- elastic fiber
- elastic glue
- elastic hysteresis
- elastic limit
- elastic membrane
- elastic modulus
- elastic scattering
- elastic wave
- elastic web
- elastic webbing
- elastical