Definitions
predatory black-and-white toothed whale with large dorsal fin; common in cold seas
Word origin
Learned borrowing from Latin orca (“tun, cask; whale”), see there for more. Although the origin is obscure, the sometimes-cited association with orcus (“underworld”) is folk-etymology. Doublet of orc.
Source: Wiktionary, CC BY-SA 4.0
Used as a crossword answer1 curated clues
01“Killer whale”4 letters
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