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Webster 1913 Edition
Excitant
Ex-cit′ant
,Adj.
 [L. 
excitans
, -antis
, p. pr. of excitare
: cf. F. excitant
.] Tending to excite; exciting. 
 Ex-cit′ant
,Noun.
 (Physiol.) 
An agent or influence which arouses vital activity, or produces increased action, in a living organism or in any of its tissues or parts; a stimulant. 
Webster 1828 Edition
Excitant
EXCI'TANT
,Noun.
  Definition 2025
excitant
excitant
English
Adjective
excitant (comparative more excitant, superlative most excitant)
Translations
exciting; stimulating
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Noun
excitant (plural excitants)
- Something that excites or stimulates; a stimulant