mortarboard
Word family nounmortarmortarboard
Related topics: College
mor·tar·board /ˈmɔːtəbɔːd $ ˈmɔːrtərbɔːrd/ noun [countableC]
SECa black cap with a flat square top worn by members of some universities on formal occasions 学士帽,学位帽 →4 See picture of 见图 mortarboard →5 see picture at 见图 hat