noun Peri·sphinc·tes \ˌperəˈsfiŋ(k)(ˌ)tēz\

Definition of Perisphinctes

  1. :  a genus (the type of the family Perisphinctidae) comprising discoidal ammonites having bifurcating ribs not interrupted on the ventral side and being characteristic of the Upper Jurassic



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Origin and Etymology of perisphinctes

New Latin, from peri- + -sphinctes (from Greek sphinktos tightly bound, from sphingein to bind fast) — more at sphincter

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a trip made at another's expense

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