ˈt(y)ünə̇kəl, -nēk- noun
( -s )
Etymology: Middle English, from Latin tunicula little tunic, little membrane, diminutive of tunica tunic, membrane
1.
a. obsolete : a small tunic
b. : a short dalmatic worn by a subdeacon over the alb during mass
c. : a short close-fitting vestment worn by a bishop under the dalmatic at pontifical ceremonies
2. : a covering membrane or integument : mantle 2b(2), tunica I