reservoir Copy link Outline 1. lăcus, ūs (tank, cistern) to pave the r.s with stone, l. lapide sternere, Liv. 39, 44.2. cisterna (underground r.)3. castellum (the r. of an aqueduct, anciently dividiculum, Fest.4. piscīna (usu. a pond)5. arca (small cistern)6. expr. by immissarium or receptaculum (aquae), Vitr. 8, 7 (6), 1 (q. v.).7. conceptācŭlum (that which r.s something) • reservoir: 1. lăcus, ūs (tank, cistern) to pave the r.s with stone, l. lapide sternere, Liv. 39, 44. 2. cisterna (underground r.): Plin. 36, 23, 52. 3. castellum (the r. of an aqueduct, anciently dividiculum, Fest.: v. Dict. Ant. "Aqueduct"): Plin. 36, 15, 24, § 121: Vitr. 4. piscīna (usu. a pond): a wooden r., p. lignea, Plin. 34, 12, 32. 5. arca (small cistern): Vitr. 6, 3, 2. 6. expr. by immissarium or receptaculum (aquae), Vitr. 8, 7 (6), 1 (q. v.). 7. conceptācŭlum (that which r.s something): the veins are the r. of blood, vena est c. sanguinis, Gell. 18, 10: of an apparatus for collecting wind, Plin. 2, 45, 44: v. receptacle.