Examples from the Web for mortarboard
Backstage earlier, McCaskill had given me tips on how to bobby pin the mortarboard cap to my head.
As for the mortarboard and gown, undergraduate opinion rather requires that they be left behind.An American at Oxford|John Corbin
Mr. Worthington pushed back his mortarboard and revealed the crimson chevron which it had bitten into his bald brow.
A right instinct sent him tiptoe over his lawn, another made him doff his mortarboard.