Gabriel Horner has mentioned in a comment on that >>>, currently known as bit-shift-right-zero-fill in ClojureScript, will be introduced to Clojure under the name of unsigned-bit-shift-right. Presumably this means a change to the ClojureScript name is in order.
NB. bit-shift-right-zero-fill is not marked private in ClojureScript, so this would technically be a breaking change. Perhaps the old function should stick around marked deprecated for a while?