Definition of "rorqual" []

• Any of several baleen whales of the family Balaenopteridae having longitudinal grooves on the throat and a small, pointed dorsal fin. Also called razorback. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "When this is combined with the fact that some of the prey that rorquals depend upon, such as krill, are declining, it becomes clear why certain rorqual populations are struggling to recover from the days of commercial whaling."
• "More significant was the recognition by Larsen that new technologies (particularly the recently invented grenade harpoon gun) would allow hunting of the more difficult but more common rorqual whales (Blue, Fin, Humpback, Sei and Minke Whales) in the Southern Ocean."
• "Whales include migratory humpback Megaptera novaeangliae (VU) and occasional blue Balaenoptera musculus (EN), rorqual Balaenoptera physalis, sperm Physeter macrocephalus (VU), Bryde's Baleanoptera edeni, killer Orcinus orca, false killer Pseudorca crassidens, pygmy killer Feresa attenuata, Cuvier's beaked Ziphius cavirostris, beaked Mesoplodon sp., shortfin pilot Globicephala macrorhynchus and melon-headed Peponocephala electra whales."