πῶρος,ὁ, a
A. stoneused in building, described by Thphr. Lap. 7 (whereπόρος), Plin. HN 36.132 , asa kind of marble,likethe Parian in colour and solidity, but lighter; butἐπιχώριος π., of the localconglomerateof Olympia, Paus. 5.10.2 ;πώρουcj. forπόρουin Gal. 6.57 (= Orib. 5.1.4 ); cf.πώρινος λίθος: pl., of stone used for substructures, IG 7.3073.9 , al. (Lebad.,ii B.C.);τῶν εἰς τὰν στοιβὰν π. ib. 42(1).106i17 (Epid.,iv B.C.);τῶν εἰς τὰ ἀντιθέματα π. τομᾶςib. 71 .
2. stalactitein caverns, Arist. Mete. 388b26 .
3. chalkstone, formed in the joints, Id. HA 521a21 , Dsc. 5.93 .
4. stonein the bladder, Hp. Nat.Hom. 14 , Ruf. Ren.Ves. 13 .
5. metaph., πῶροι γῆς τὰ μάρμαρα
M.Ant. 9.36
.