demonstrant
[d
uh
-
mon
-str
uh
nt]
/dəˈmɒn strənt/
noun
1.
demonstrator
(def 2).
Origin
1865-70;
<
Latin
dēmonstrant-
(stem of
dēmonstrāns
), present participle of
dēmonstrāre
to show. See
demonstrate
,
-ant