n. pl. ce·ros or cero An edible fish (Scomberomorus regalis) of western Atlantic waters, having silvery sides and a dark-blue back. [Alteration of Spanish sierra, saw, fish of the genus Scomberomorus (from the two lines of small fins, resembling the teeth of a saw, that run between the fish's dorsal and anal fins and its tail ); see SIERRA.] |
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