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Definition of HCO
1. Initialism. '''H'''earing '''C'''arry '''O'''ver, a service or device that allows speech-disabled users with hearing to listen to the person they are calling. ¹
¹ Source: wiktionary.com
Lexicographical Neighbors of HCO
HBcAb HBcAg HBeAb HBeAg HBsAb HBsAg HCC HCFA HCFC HCFCs | HCG HCI HCLK HCLSIG HCMC HCO (current term) HCS HCV HC toxin reductase HCl scrubber | HCl scrubbers HD HD-DVD HDCP HDCV HDD HDDs HDF HDI HDL |