Search agastria agastria /əgas″trē·ə/ [Gk, a + gaster, without stomach] , the absence of a stomach. −agastric, adj. Tweet Telegram VK Random Words residual urine pectus carinatum chest prominences and depressions motor fiber tyromatosis drape Cogan’s oculomotor apraxia experimental embryology ventricular fibrillation (VF)