Clap"per (?), n.
1.
A person who claps.
2.
That which strikes or claps, as the tongue of a bell, or the piece of wood that strikes a mill hopper, etc. See Illust. of Bell.
Clapper rail Zool., an Americam species of rail (Rallus scepitans).
© Webster 1913.
Clap"per, n. [F. clapier.]
A rabbit burrow.
[Obs.]
© Webster 1913.