Noun
Initialism of fetal heart rate.
Initialism of fluoride-cooled high-temperature reactor.
Source: en.wiktionary.orgAnother mobile system developed at the Fraunhofer Institute for radar technique (FHR) near Bonn is designed to safeguard rescuers in debris fields in case structures are about to topple or slide. Source: Internet
€579 through Amex FHR got me a Pool Pavilion upgrade, 50-min massage, breakfast and 4pm checkout at Amanjena. Source: Internet