val·vule 
(vălvyl′) also val·vu·la (-vyə-lə)
(vălvyl′) also val·vu·la (-vyə-lə)n. pl. val·vules also val·vu·lae (-vyə-lē′)
A small valve or valvelike structure.
[From New Latin valvula, from diminutive of Latin valva, leaf of a door; see VALVE.]
- onerousness
- oneself
- one-shot
- one-sided
- one-sidedly
- one-sidedness
- Onesies
- one-size-fits-all
- (one's) level best
- one's level best
- (one's) lips are sealed
- one's lips are sealed
- (one's) own man
- one's own man
- (one's) own woman
- one's own woman
- one's self
- one-step
- one-stop
- (one's) type
- one's type
- one-time
- one-time pad
- one-timer
- one-to-one