Definition of tunic
1 a
: a simple slip-on garment made with or without sleeves and usually knee-length or longer, belted at the waist, and worn as an under or outer garment by men and women of ancient Greece and Rome
b
: surcoat
2 a
: a hip-length or longer blouse or jacket
b
: a short overskirt
3
: a long usually plain close-fitting jacket with high collar worn especially as part of a uniform
4
: tunicle
5
: an enclosing or covering membrane or tissue
- the tunic of a seed
