flurry of

RD9月号のタツノオトシゴの記事にはもう一つ覚えたい単語が出て来ました。
These encouraging developments, however, have come amid a flurry of setbacks. In 2004, through the efforts of Project Seahorse, all known seahorse species were listed on the Convention on International Trade in Endangered Species of Wild Fauna and Flora (CITES) which stipulates that only seahorses that have grown to 10 centimeters (large enough to have reproduction) can be traded across international borders.
"flurry of" は雪が舞い散る様な意味があると思いましたが、ここでは別の意味になる表現なので辞書を見ます。
・Merriam-Webster's Online Dictionary: a: a brief period of commotion or excitement b: a sudden occurrence of many things at once: a flurry of insults: a flurry of activity on the floor of the stock market as soon as the news spread
・American Heritage Dictionary: 1. A sudden burst or commotion; a stir: a flurry of interest in the new product; a flurry