n. [ L. See Callous. ] 1. (Med.) (a) Same as Callosity. (b) The material of repair in fractures of bone; a substance exuded at the site of fracture, which is at first soft or cartilaginous in consistence, but is ultimately converted into true bone and unites the fragments into a single piece. [ 1913 Webster ]
2. (Hort.) The new formation over the end of a cutting, before it puts out rootlets. [ 1913 Webster ]
[みみにたこができる, miminitakogadekiru](exp, v1) to be told or made to hear something so often that you (metaphorically) get calluses on your ears[Add to Longdo]