(Anatomy)situated or occurring near the front end of the body, especially in the region of the nose and mouth or (in an embryo) near the hypophyseal region (剖)身体前端的(尤指鼻和嘴部分或[胚胎的]垂体附近) the rostral portion of the brain. 脑垂体附近。
(Zoology)of or on the rostrum (动)喙的,吻突的,嘴的,(蛇的)吻鳞 in these snakes the rostral shield is enlarged and flattened. 在这些蛇中吻鳞是扩大了的和扁平的。