n. [ L. dendrachates; Gr. de`ndron a tree + &unr_; agate: cf. F. dendrachate, dendragate. ] (Min.) Arborescent or dendritic agate. [ 1913 Webster ]

{ } n. [ Gr. &unr_;; di- = di`s- twice + &unr_; a drachm. ] A two-drachma piece; an ancient Greek silver coin, worth nearly forty cents. [ 1913 Webster ]

n. [ See Drachma. ] 1. A drachma. [ 1913 Webster ]

2. Same as Dram. [ 1913 Webster ]

‖n.; pl. E. Drachmas L. Drachmæ [ L., fr. Gr. &unr_;. See Dram. ] 1. A silver coin among the ancient Greeks, having a different value in different States and at different periods. The average value of the Attic drachma is computed to have been about 19 cents (U. S. currency, ca. 1913). [ 1913 Webster ]

2. A gold and silver coin of modern Greece worth 19.3 cents. [ 1913 Webster ]

3. Among the ancient Greeks, a weight of about 66.5 grains; among the modern Greeks, a weight equal to a gram. [ 1913 Webster ]

‖n. [ F. ] See Drachma. [ 1913 Webster ]

n. See Fluid dram, under Fluid. Pharm. of the U. S. [ 1913 Webster ]

n. [ Hydr- + arachnid. ] (Zool.) An aquatic mite of the genus Hydrachna. The hydrachnids, while young, are parasitic on fresh-water mussels. [ 1913 Webster ]

n. (Metal.) A mass of iron on which the operation of smelting has failed of its intended effect; -- so called from Shadrach, one of the three Hebrews who came forth unharmed from the fiery furnace of Nebuchadnezzar. (See Dan. iii. 26, 27.) [ 1913 Webster ]

{ ‖ } n. [ NL. tetradrachma, fr. Gr. tetra`drachmon; te`tra- (see Tetra-) + drachmh` drachm, drachma. ] A silver coin among the ancient Greeks, of the value of four drachms. The Attic tetradrachm was equal to 3s. 3d. sterling, or about 76 cents. [ 1913 Webster ]