mortarboard是什么意思

音标: 英 ['mɔ:təbɔ:d] 美 ['mɔ:təˌboʊrd]

n. 灰泥搅拌托板, 学士帽

n. a square board with a handle underneath; used by masons to hold or carry mortar
n. an academic cap with a flat square with a tassel on top