释义 |
perforator
per·fo·rate P0189000 (pûr′fə-rāt′)v. per·fo·rat·ed, per·fo·rat·ing, per·fo·rates v.tr.1. To pierce, punch, or bore a hole or holes in; penetrate.2. To pierce or stamp with rows of holes, as those between postage stamps, to allow easy separation.v.intr. To pass into or through something.adj. (pûr′fər-ĭt, -fə-rāt′) Having been perforated. [Latin perforāre, perforāt- : per-, per- + forāre, to bore.] per′fo·ra·ble (-fər-ə-bəl) adj.per′fo·ra′tive adj.per′fo·ra′tor n.Translations
Perforator
perforator[′pər·fə‚rād·ər] (communications) In telegraph practice, a device for punching code signals in paper tape for application to a tape transmitter. Perforator a prehistoric tool in the form of a pointed stick made of wood or bone. The upper portion is either thickened or shaped into a figure and sometimes has an opening for hanging. During the Stone Age, the perforator was used to make holes for sewing skins; later, it was also used to decorate clay vessels. As the use of iron spread, bone and wood perforators were replaced by the metal awl. perforator
per·fo·ra·tor (per'fō-rā'tŏr), An instrument for making a bony opening through the cranium. Synonym(s): trephine (1) perforator (pĕr′fō-rā-tor) [L., a piercing device] 1. An instrument for piercing the skull and other bones.2. A blood vessel that penetrates an organ (e.g. the septal perforator arteries of the heart); any of the perforating veins of the lower extremitiestympanum perforatorAn instrument used to perforate the tympanum.ThesaurusSeeperforate |