physiological
adj
(a) of or concerning physiology 生理学的
physiological research 生理学研究.
(b) of or concerning the bodily functions 生理的; 生理机能的
the physiological effects of space travel 宇宙航行的生理影响.
Neither was I surprise when the train stopped at Widley, a tiny station a few miles along the line.Even a mighty express train can be held up by signals.