Argulus
Ar"gu*lus\, n. [NL., dim of Argus.] (Zo["o]l.) A genus of copepod Crustacea, parasitic of fishes; a fish louse. See Branchiura.| an extraordinary or unusual thing, person, or event; an exceptional example or instance. |
| a calculus or concretion found in the stomach or intestines of certain animals, esp. ruminants, formerly reputed to be an effective remedy for poison. |
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