clerical collar
noun
1.
a stiff, narrow, bandlike white collar fastened at the back of the neck, worn by certain clerics.
Also called
reversed collar,
Roman collar
.
Origin
1945-50
British Dictionary definitions for
clerical collar
clerical collar
noun
1.
a stiff white collar with no opening at the front that buttons at the back of the neck; the distinctive mark of the clergy in certain Churches
Informal name
dog collar