1) Control 2) Controller 
• (a.) Containing valves; serving as a valve; opening by valves; valvate; as, a valvular capsule. • (a.) Of or pertaining to a valve or valves; specifically (Med.), of or pertaining to the valves of the heart; as, valvular disease.
(val´vu-lәr) pertaining to, affecting, or of the nature of a valve.
Valv'u·lar adjective [ Confer French valvulaire .] 1. Of or pertaining to a valve or valves; specifically (Medicine) , of or pertaining to the valves of the heart; as, valvular disease. 2. Containing valves; serving as a valve; opening by valves; valvate; as, a 
Type: Term Pronunciation: val′vyū-lăr Synonyms: valvate
[adj] - relating to or operating by means of valves
adjective relating to or operating by means of valves