callum Copy link Outline I. The hardened, thick skin upon animal bodies ...B. Meton.1. The hard flesh of certain animals2. The hard skin or the hard flesh of plants ...3. The hard covering of the soilII. Trop., hardness, callousness, insensibility ... • callum, i, n. (callus, i, m., Cels. 5, 18, 36; 5, 26, 31 al.; Domit. Mars. ap. Charis. p. 55; plur. calli, Scrib. Comp. 37; 205; Suet. Aug. 80) [cf. Gr. καλάμη; Lat. culmus, culmen]. I. The hardened, thick skin upon animal bodies: fere res omnes aut corio sunt Aut etiam conchis aut callo aut cortice tectae, Lucr. 4, 935: calceamentum solorum callum, Cic. Tusc. 5, 32, 90: pedum, Plin. 22, 25, 60, § 127; cf. id. 9, 35, 54, § 108.—Plur., Suet. Aug. 80.—Hence, B. Meton. 1. The hard flesh of certain animals: aprugnum, Plaut. Poen. 3, 2, 2; id. Pers. 2, 5, 4; for which absol. callum, id. Capt. 4, 3, 4; id. Ps. 1, 2, 33: manus elephanti, Plin. 8, 10, 10, § 31: locustarum, id. 9, 30, 50, § 95.— 2. The hard skin or the hard flesh of plants: uvarum, Plin. 14, 1, 3, § 14: pirorum ac malorum, id. 15, 28, 34, § 116: fungorum, id. 22, 23, 47, § 96: foliorum, id. 16, 22, 34, § 82; Pall. Mart. 10, 28 al.— 3. The hard covering of the soil: terrae, Plin. 17, 5, 3, § 33; 19, 2, 11, § 33; 31, 4, 30, § 53; also, of the hardness of salt: salis, id. 16, 12, 23, § 56.— II. Trop., hardness, callousness, insensibility, stupidity (rare; most freq. in Cic.): ipse labor quasi callum quoddam obducit dolori, renders callous to pain, Cic. Tusc. 2, 15, 36; 3, 22, 53; id. Fam. 9, 2, 3: ducere, Sen. Cons. ad Marc. 8, 2: inducere, Quint. 12, 6, 6.