单词	beta-endorphin
释义	beta-endorphin noun be·​ta-en·​dor·​phin ˈbā-tə-en-ˈdȯr-fən  : an endorphin of the pituitary gland having a much greater analgesic potency than morphine Word History First Known Use 1976, in the meaning defined above Medical Definition beta-endorphin noun be·​ta-en·​dor·​phin variants or β-endorphin ˌbāt-ə-en-ˈdȯr-fən, chiefly British ˌbē-tə-  : an endorphin of the pituitary gland with much greater analgesic potency than morphine that occurs free and as the terminal sequence of 31 amino acids in the polypeptide chain of beta-lipotropin
随便看	littermates litters littery littest litting little little anteater Little Armenia little auk little barley Little Bear little better than Little Bighorn Little Bighorn Battlefield National Monument little bittern little bitty little black ant little blue heron little bluestem little brain little brother little brother/sister little brown bat little brown crane little buckeye

英语词典包含469781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。