Similar words: multinational corporation, oration, peroration, adoration, decoration, evaporation, exploration, corporation. Meaning: ['pɜrfə'reɪʃn /'pɜː-] 
n. 1. a line of small holes for tearing at a particular place 2. a hole made in something 3. the act of punching a hole (especially a row of holes as for ease of separation).
n. 1. a line of small holes for tearing at a particular place 2. a hole made in something 3. the act of punching a hole (especially a row of holes as for ease of separation). 
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151 Conclusion:The first perforation artery vessel bone flap can be used in repairing neck of femur, femorale calcar and upper femur incomplete.
152 Conclusions Early preserved human amnion transplantation can effectively decrease the occurrence of corneal perforation, prevent symblepharon, shorten the time of inflammation, improve visual acuity.
More similar words: multinational corporation, oration, peroration, adoration, decoration, evaporation, exploration, corporation, elaboration, restoration, commemoration, incorporation, discoloration, corroboration, deterioration, collaboration, in commemoration of, close corporation, in collaboration with, rationalization, rationalisation, certificate of incorporation, ratification, gratification, stratification, self-gratification, ration, rationed, social stratification, gyration.