1) An exciter 2) Type of afferent nerve 
The Excitor was a fast boat tourist experience in the Bay of Islands, New Zealand, that operated until 2011. It was used on a high-speed trip through the scenic bay out to Cape Brett, where the boat travelled through the `Hole in the Rock`, a natural sea-tunnel (wave-heights permitting). The boat was operated by Tourism Holdings Ltd, then by Int.....
Synonym for stimulant ... 1. Producing stimulation, especially producing stimulation by causing tension on muscle fibre through the nervous tissue. ... 2. <pharmacology> An agent or remedy that produces stimulation. ... Origin: L. Stimulans ... (18 Nov 1997) ... 
Type: Term Pronunciation: ek-sī′tŏr, -tōr Synonyms: stimulant2
a nerve whose stimulation excites greater action. · an exciter.