DUODECAHEDRAL; DUODECAHEDRON
Du`o*dec`a*he"dral, a., Du`o*dec`a*he"dron (, n.
Defn: See Dodecahedral, and Dodecahedron.
DUODECENNIAL Du`o*de*cen"ni*al, a. Etym: [L. duodecennis; duodecim twelve + annus year.]
Defn: Consisting of twelve years. [R.] Ash.
DUODECIMAL
Du`o*dec"i*mal, a. Etym: [L. duodecim twelve. See Dozen.]
Defn: Proceeding in computation by twelves; expressed in the scale of
twelves.
— Du`o*dec"i*mal*ly, adv.
DUODECIMAL
Du`o*dec"i*mal, n.
1. A twelfth part; as, the duodecimals of an inch.
2. pl. (Arch.)
Defn: A system of numbers, whose denominations rise in a scale of twelves, as of feet and inches. The system is used chiefly by artificers in computing the superficial and solid contents of their work.