ganglion
noun [ C ] medical specialized uk/ˈɡæŋ.ɡli.ən/ us/ˈɡæŋ.ɡli.ən/ ganglia /ˈɡæŋ.ɡli.ə/ /ˈɡæŋ.ɡli.ə/ ganglions
腱鞘囊肿（常发生在手背）
a swelling, often on the back of the hand
（尤指大脑和脊柱外部的）神经节
a mass of nerve cells, especially appearing outside the brain or spine