( often initial capital letter ) a comic character in commedia dell'arte and the harlequinade, usually masked, dressed in multicolored, diamond-patterned tights, and carrying a wooden sword or magic wand.

a buffoon.

any of various small snakes having bright diamond-pattern scales.

fancifully varied in color, decoration, etc.

harlequin pants.

resembling a harlequin's mask

harlequin glasses.

noun

buffoon , clown , jester