Dictionary

mortarboard

noun mor·tar·board \ˈmr-tər-ˌbrd\

: a hat with a flat square top that is worn for special ceremonies at some schools

Full Definition of MORTARBOARD

1
:  an academic cap consisting of a closely fitting headpiece with a broad flat projecting square top
2
a :  hawk 2
b :  a board or platform about three feet (one meter) square for holding mortar

Examples of MORTARBOARD

  1. The students donned robes and mortarboards for graduation.

Illustration of MORTARBOARD

First Known Use of MORTARBOARD

1854

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