/di kyoor"ee euhn/ , n. Rom. Hist.
1. the head of a decury.
2. a member of the senate of an ancient Roman colony or municipality.
[ 1350-1400; ME decurion- (s. of decurio ), equiv. to decuri ( a ) a division of ten ( dec ( em ) TEN + -uria -URE) + -ion- -ION ]