a rorqual, Balaenoptera borealis, inhabiting all seas: now greatly reduced in number.
Origin of sei whale
1915–20; < Norwegian seihval, equivalent to sei (Old Norse seithr) coalfish + hval whale1
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
a rorqual, Balaenoptera borealis
Word Origin for sei whale
C20: from Norwegian seihval, from sei coalfish (see saithe) + hval whale: so called because it follows coalfish in search of food
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012