regimental

• POS: Adjective, Noun
• HYPHEN: reg=i=men=tal

CIDE DICTIONARY

regimental, a. 

 Belonging to, or concerning, a regiment; as, regimental officers, clothing.  [1913 Webster]

Regimental school, in the British army, a school for the instruction of the private soldiers of a regiment, and their children, in the rudimentary branches of education.

OXFORD DICTIONARY

regimental, adj. & n.
--adj. of or relating to a regiment.
--n. (in pl.) military uniform, esp. of a particular regiment.

Derivative

regimentally adv.