Word Study
    
                                	cardinality |
                                	cardinalize |
                                	cardinalship |
                                	carding |
                                	cardiogenic shock |
                                cardiogram
                                	| cardiograph 
                                	| cardiographic 
                                	| cardiography 
                                	| cardioid 
                                	| cardioid microphone 
                            
        cardiogram
WORDNET DICTIONARY
Noun cardiogram has 1 sense
- cardiogram(n = noun.communication) ecg, ekg, electrocardiogram - a graphical recording of the cardiac cycle produced by an electrocardiograph; Array is a part of checkup, health check, medical, medical checkup, medical exam, medical examination
 
is a kind of graph, graphical record
CIDE DICTIONARY
cardiogram, n. [Gr. kardi`a heart + -gram.]. 
                                            
                                         Any instrumental record made of heart activity, especially the curve or tracing made by a cardiograph.  Sometimes used synonymously with electrocardiogram .                                                                                 [Webster 1913 Suppl.]                                                                                                                    
                                                                                    OXFORD DICTIONARY
cardiogram, n.  a record of muscle activity within the heart, made by a cardiograph.
                    
            For further exploring for "cardiogram" in Webster Dictionary Online
        

