[syn: pit-a-pat, pitty-patty, pitty-pat, pitter-patter]
The Collaborative International Dictionary of English v.0.48:
Pitter-patter \Pit"ter-pat`ter\, n.
   A sound like that of alternating light beats. Also, a
   pattering of words.
   [Webster 1913 Suppl.]
The Collaborative International Dictionary of English v.0.48:
Pitter-patter \Pit"ter-pat`ter\, adv.
   With, or with the sound of, alternating light beats; as, his
   heart went pitter-patter.
   [Webster 1913 Suppl.]
WordNet (r) 3.0 (2006):
pitter-patter
    adv 1: as of footsteps; "he came running pit-a-pat down the
           hall" [syn: pit-a-pat, pitty-patty, pitty-pat,
           pitter-patter]
    2: describing a rhythmic beating; "his heart went pit-a-pat"
       [syn: pit-a-pat, pitty-patty, pitty-pat, pitter-
       patter]
    n 1: a series of rapid tapping sounds; "she missed the pitter-
         patter of little feet around the house"
    v 1: rain gently; "It has only sprinkled, but the roads are
         slick" [syn: sprinkle, spit, spatter, patter,
         pitter-patter]
    2: make light, rapid and repeated sounds; "gently pattering
       rain" [syn: patter, pitter-patter]