tu·ni·ca 
(tnĭ-kə, ty-)
(tnĭ-kə, ty-)n. pl. tu·ni·cae (-kē′, -sē′)
An enclosing membrane or layer of tissue.
[Latin, tunic; see TUNIC.]
- workforce
- work force
- work for hire
- work function
- work hardening
- workhorse
- workhouse
- work in
- working
- working capital
- working class
- working-class
- working control
- working day
- working dog
- working fluid
- working girl
- workingman
- working memory
- working papers
- working substance
- workingwoman
- work in progress
- work into
- work like a charm