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monocardian

adjective
mono·​car·​di·​an | \"+¦kärdēən\

Definition of monocardian 

(Entry 1 of 2)

: having a single auricle and ventricle to the heart

monocardian

noun
\"\
plural -s

Definition of monocardian (Entry 2 of 2)

: an animal having a monocardian heart

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History and Etymology for monocardian

Adjective

mon- + Greek kardia heart + English -an

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