单词	excitatory
释义	excitatory /ɪkˈsʌɪtət(ə)ri / /ɛkˈsʌɪtət(ə)ri/ adjective chiefly Physiology Characterized by, causing, or constituting excitation: the excitatory action of these impulses... Neurosteroids can therefore alter neuronal excitability very rapidly by binding to receptors for inhibitory or excitatory neurotransmitters at the cell membrane. The NMDA receptor is activated by glutamate, the primary excitatory neurotransmitter in the brain. The parasympathetic nervous system is excitatory and results in the contraction of smooth muscle, whereas the sympathetic system inhibits smooth muscle in the digestive system.
随便看	Beaumont, Francis Beaune Beauregard, P. G. T. beau sabreur beaut beaute du diable beauteous beauteously beauteousness beautician beautied beautification beautifier beautiful beautifully beautifulness beautify beautihood beautiless beautitude beauty beauty and the beast beautyberry beauty bush beautybush

英语词典包含243303条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。