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intr.v. blo·vi·at·ed, blo·vi·at·ing, blo·vi·ates Slang
To discourse at length in a pompous or boastful manner: "the rural Babbitt who bloviates about 'progress' and 'growth'" (George Rebeck).
[Mock-Latinate formation, from blow.]
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.
US to talk at length, esp in an insubstantial but inflated manner
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
v.i. -at•ed, -at•ing.
to speak pompously.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.