We don't have synonyms for kinin yet — it may be a rare, specialized, newly coined, or misspelled word. The closest thesaurus entries we have are kirin, kinkin and knin.
(n) :
(biochemistry) Any of various structurally related polypeptides of the autacoid family, such as bradykinin and kallikrein, that act locally to induce vasodilation and contraction of smooth muscle.
(n) :
(biochemistry) Any of various structurally related polypeptides of the autacoid family, such as bradykinin and kallikrein, that act locally to induce vasodilation and contraction of smooth muscle.