Henry George Liddell, Robert Scott, A Greek-English Lexicon

A.anvil of stone or metal, A.Fr.307 (reading μύδρος）; τύπτεσθαι μύδρος, i. e. as hard as an anvil, Antiph.195.3; also the redhot mass of iron on the anvil, Call.Dian.49, Nic.Al.50; μύδρους αἴρειν χεροῖν hold red-hot iron in the hands, as an ordeal, S.Ant.264; “μύδρον σιδήρεον κατεπόντωσαν” Hdt.1.165, cf. Arist.Ath.23.5, IG12.682 (prob.), Call.Fr.209; Πακτώλιος μ. lump [of gold] from Pactolus, Lyc.272; μ. διάπυρος a red-hot mass of stone or metal, of the sun, Anaxag. ap. D.L.2.8, cf. 15, Archel. in Placit.2.13.6, Ph.1.623; “ἀστέρος μ.” Critias 25.35 D.; μ. διάπυροι the stones thrown out by Aetna, Arist.Mu.395b23, cf. Str.6.2.8; also, of red-hot stones or pieces of metal, thrown into a liquid to vaporize it, Hp.Mul.2.134: generally, a stone, Orph.A.896; ὁ ἀὴρ διάπυρος καὶ μ. γενόμενος dub. in Hp. Flat.8; μύδρος κίων παχὺς ἄξυστος (sine interpr.) Gloss. (Not in Hom. exc. in a spurious line read by some after Il.15.21.) (Cf. σμύδρος.)