Lexic.us

Definition of Leptocardia

1. n. pl. The lowest class of Vertebrata, including only the Amphioxus. The heart is represented only by a simple pulsating vessel. The blood is colorless; the brain, renal organs, and limbs are wanting, and the backbone is represented only by a simple, unsegmented notochord. See Amphioxus.

Medical Definition of Leptocardia

1. The lowest class of Vertebrata, including only the Amphioxus. The heart is represented only by a simple pulsating vessel. The blood is colourless; the brain, renal organs, and limbs are wanting, and the backbone is represented only by a simple, unsegmented notochord. See Amphioxus. Alternative forms: Leptocardii. Origin: NL, fr. Gr. Small + the heart. Source: Websters Dictionary (01 Mar 1998)

Lexicographical Neighbors of Leptocardia

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