plural noun Lep·to·car·dii \-dēˌī\

Definition of Leptocardii

in some classifications

  1. :  a class coextensive with Cephalochordata and often considered the lowest division of Vertebrata

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Origin and Etymology of leptocardii

New Latin, from lept- + -cardii (from Greek kardia heart) — more at heart

Seen and Heard

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a trip made at another's expense

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