名詞 patter:

1. plausible glib talk (especially useful to a salesperson)
   同義詞：spiel, line of gab
2. a quick succession of light rapid sounds

動詞 patter:

1. rain gently
   同義詞：sprinkle, spit, spatter, pitter-patter
2. make light, rapid and repeated sounds
   同義詞：pitter-patter

1. The dog pattered down the stairs.
   狗嗒塔地跑下樓梯。
2. They will soon be hearing the patter of tiny feet.
   他們很快就會有個小寶寶了。
3. The falling leaves pattered against the windowpanes.
   落葉嗒塔地打在玻璃窗上。

patter

v.（動詞）
pat.tered,pat.ter.ing,pat.ters
v.intr.（不及物動詞）
To make a quick succession of light, soft tapping sounds:
發(fā)出（急促的）嗒嗒聲：快速地發(fā)出一連串輕而柔和的敲擊聲：
例句：
Rain pattered steadily against the glass.
雨點不斷地敲打著玻璃

To move with quick, light, softly audible steps.
嗒嗒地跑：用輕快微微聽得見的步伐行走
v.tr.（及物動詞）
To cause to patter.
使發(fā)出嗒嗒聲
n.（名詞）
A quick succession of light, soft tapping sounds:
嗒嗒聲：一連串輕快的敲門聲：
例句：
the patter of rain on the rooftops.
屋頂上雨點的敲打聲

來源：
Frequentative of pat
pat的重復

patter
patter 2

v.（動詞）
pat.tered,pat.ter.ing,pat.ters
v.intr.（不及物動詞）
To speak or chatter glibly and rapidly.
喋喋不休：流利且快速地講述或饒舌
To mumble prayers in a mechanical manner.
念經(jīng)，禱告：機械含混地誦讀祈禱文
v.tr.（及物動詞）
To utter in a glib, rapid, or mechanical manner.
喋喋不休地說：滔滔不絕地、急迅地或機械地說
n.（名詞）
The jargon of a particular group; cant.
黑話，行話：某一特殊團體的行話；黑話
Glib, rapid speech, as of an auctioneer, a salesperson, or a comedian.
快板，順口溜：滔滔不絕的、快速的言語，如拍賣商、小商販或喜劇演員等的言語
Meaningless talk; chatter.
毫無意義的談話；閑聊

來源：
Middle English patren
中古英語 patren
from paternoster [paternoster (from the mechanical and rapid recitation of the prayer)] * see paternoster
源自 paternoster [主禱文（來自于祈禱者機械快速的誦讀祈禱文）] *參見 paternoster

【引伸】
pat.terer
n.（名詞）