[1] : The Collaborative International Dictionary of English v.0.48

leptocardia \lep`tocar"dia\ le^p`t-okaumr"di^.a,
   n. pl. nl., fr. gr. lepto`s small + kardi`a the heart.
   zool.
   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. written also
   leptocardii.
   1913 webster
see also:
amphioxus leptocardii 

Leptocardia >> L Words
Leptocardia, definition of term: Leptocardia
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