[or.nith.is.chi.an] n [NL Ornithischia, fr. ornith- + ischium] (1933): any of an order (Ornithischia) of herbivorous dinosaurs (as a stegosaurus) that have the pubis of the pelvis rotated backward to a position parallel and close to the ischium--compare saurischian -- ornithischian adj
ORNITHISCHIAN
Meaning of ORNITHISCHIAN in English
Merriam-Webster English vocab. Английский словарь Merriam Webster. 2012