Qin·huang·dao (ch?n?hwäng?dou?) also Chin·wang·tao (-wäng?tou?) A city of northeast China on the Bohai Sea east of Beijing. It was formerly a treaty port.American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.Qin?huang?dao or Chin?huang?tao (?t??n??w???da?) n. a seaport in NE Hebei province, in NE China, on the Bohai. 364,972. Random House Kernerman Webster’s College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.