mortarboard Syllabification: (mor·tar·board)Pronunciation: /ˈmôrtərˌbôrd/Definition of mortarboard noun 1an academic cap with a stiff, flat, square top and a tassel. 2a small square board with a handle on the underside, used by bricklayers for holding mortar. mortarboard in other Oxford dictionaries Definition of mortarboard in the British & World English dictionary
