serous membrane
smooth coating of body cavities (thorax and abdomen), smooth, shiny, translucent and content with a thin layer of liquid
en-GB/ˈsɛɹəs ˈmɛmbɹeɪn/
en-US/ˈsiɹəs ˈmɛmˌbɹeɪn/
smooth coating of body cavities (thorax and abdomen), smooth, shiny, translucent and content with a thin layer of liquid