We don't have synonyms for zinc finger yet — it may be a rare, specialized, newly coined, or misspelled word. The closest thesaurus entries we have are zinc-finger, ring finger and zinc fingers.
(n) :
(biochemistry, genetics) A structure characterized by the coordination of one or more zinc ions, found in some proteins, that typically binds to specific sequences of DNA and regulates genes.
(n) :
(biochemistry, genetics) A structure characterized by the coordination of one or more zinc ions, found in some proteins, that typically binds to specific sequences of DNA and regulates genes.