having the right and left sides of the heart somewhat or completely divided, as in birds and mammals.
Origin of diplocardiac
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
(of birds and mammals) having a four-chambered heart, which enables two separate circulations and prevents mixing of the arterial and venous blood
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012