HF
Corrosive acid initials
HF stands for high frequency, the radio band from 3 to 30 MHz used for long-distance communication, including amateur radio and aviation.
In chemistry, HF is hydrogen fluoride, a highly corrosive acid.
In texting, HF means have fun. (Hf is hafnium.)
Rapid oscillation rate
- shortwaveHigh-frequency radio band
- amateurNonprofessional participant
- antennaBroadcast signal receiver
- propagationAct of spreading widely
ionosphere · transceiver · broadcast · MHz · skywave · bands · transmission · receiver
Fluorine-based corrosive compound
- fluorinePale yellow halogen gas
- hydrogenSimplest atomic element
- corrosiveDestroys by chemical action
- etchantChemical for controlled corrosion
toxic · burns · caustic · neutralization · ventilation · decontamination · exposure · inhalation
Communication channel for transmitting information
- avionicsAircraft electronic equipment
- transponderSignal-activated transmitter
- radioElectromagnetic wave receiver
- radarRadio-wave object detection
Partial electrical conductor
- refineryIndustrial purification facility
- petroleumNatural underground hydrocarbon liquid
- alkylationAdding hydrocarbon groups chemically
- fluoropolymerCarbon-fluorine chain compound
Teflon · electroplating · metallurgy · manufacturing · cleanroom · wafer · microchip · etching
high-frequency
Rapid oscillation rate
- shortwaveHigh-frequency radio band
- amateurNonprofessional participant
- antennaBroadcast signal receiver
propagation · ionosphere · transceiver · broadcast · MHz · skywave · bands · transmission · receiver · CW
hydrofluoric
Fluorine-based corrosive compound
etchant · toxic · burns · caustic · neutralization · ventilation · decontamination · exposure · inhalation · antidote
datalink
Communication channel for transmitting information
- avionicsAircraft electronic equipment
- transponderSignal-activated transmitter
- radioElectromagnetic wave receiver
semiconductor
Partial electrical conductor
- refineryIndustrial purification facility
- petroleumNatural underground hydrocarbon liquid
- alkylationAdding hydrocarbon groups chemically
fluoropolymer · Teflon · electroplating · metallurgy · manufacturing · cleanroom · wafer · microchip · etching · fabrication