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                                	subsistent |
                                	subsister |
                                	subsizar |
                                	subsoil |
                                	subsolary |
                                subsonic
                                	| subspace 
                                	| subspecies 
                                	| subsphenoidal 
                                	| subspherical 
                                	| subspinous 
                            
        subsonic
WORDNET DICTIONARY
Adjective subsonic has 1 sense
OXFORD DICTIONARY
subsonic, adj.  relating to speeds less than that of sound.
                    Derivative
                        subsonically adv.
                                                        
            For further exploring for "subsonic" in Webster Dictionary Online
        


 
    
 
