adv.
Function: prefix
Etymology: Latin infra ― more at UNDER
1 : below < infra human> < infra sonic>
2 : within < infra specific>
3 : below in a scale or series < infra red>
adv.
Function: prefix
Etymology: Latin infra ― more at UNDER
1 : below < infra human> < infra sonic>
2 : within < infra specific>
3 : below in a scale or series < infra red>
Merriam Webster Collegiate English Dictionary. Merriam Webster - Энциклопедический словарь английского языка. 2012