Defn: See 3d Trone, 2. [Obs. or Scott.]
TRONA
Tro"na, n. Etym: [Of Egyptian or North African origin.] (Chem. &
Min.)
Defn: A native double salt, consisting of a combination of neutral and acid sodium carbonate, Na2CO3.2HNaCO3.2H2O, occurring as a white crystalline fibrous deposit from certain soda brine springs and lakes; — called also urao, and by the ancients nitrum.
TRONAGE
Tron"age, n. Etym: [From Trone a steelyard.]
Defn: A toll or duty paid for weighing wool; also, the act of weighing wool. [Obs.] Nares.
TRONATOR
Tro*na"tor, n. Etym: [LL. See Tronage.]
Defn: An officer in London whose duty was to weigh wool. [Obs.]
TRONE
Trone, n.
Defn: A throne. [Obs.] Chaucer.
TRONE
Trone, n. Etym: [Cf. Prov. F. trogne a belly.]