stop·watch 
(stŏpwŏch′)
(stŏpwŏch′)n.
A watch that can be instantly started and stopped by pushing a button and used to measure an exact duration of time.
stopwatch- herbal medicine
- herbarium
- herb bennet
- herb doctor
- herbed
- Herbert
- Herbert
- Herbert
- Herbert
- Herbert
- Herbert Alexander
- Herbert Beerbohm
- Herbert Clark
- H(erbert) G(eorge)
- Herbert Henry
- Herbert Henry
- Herbert Jeffrey
- Herbert John
- Herbert Lawrence
- (Herbert) Marshall
- H(erbert) Paul
- Herbert von
- Herbert Wayne
- herbicidal
- herbicide