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A heavy-bodied mackerel shark (Lamna nasus) chiefly of temperate waters.
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.
(Animals) any of several voracious sharks of the genus Lamna, esp L. nasus, of northern seas: family Isuridae. Also called: mackerel shark
[C18: from Cornish porgh-bugel, of obscure origin]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
a large, voracious mackerel shark, Lamna nasus, of northern seas, having a crescent-shaped tail.
[1750–60; < Cornish porghbugel]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.