kallidin
noun
kal·li·din ˈka-lə-dən 
: either of two vasodilator kinins formed from blood plasma globulin by the action of kallikrein:
a
: bradykinin
b
: one with a terminal lysine amino acid residue added to bradykinin
Word History
Etymology
German, from Kallikrein + Peptid peptide + -in
First Known Use
1950, in the meaning defined above
Medical Definition
kallidin
noun
kal·li·din ˈkal-əd-ən
: either of two vasodilator kinins formed from blood plasma globulin by the action of kallikrein:
a
: bradykinin
b
: one that has the same amino acid sequence as bradykinin with a terminal lysine added