What does HRT stand for?

Arrhythmia Research Technology - AMEX symbol (SPSG)

Hard Return (SAUS)

Hartford - Diocesan abbreviation - Connecticut (TOCD)

Hartwell Railway Co. - AAR code

Heart - Lumber (WOHB)

Heart

Heart Rate - Cardiology (DAVI)

Heat Rejection and Transport (SSD)

Heavy Rail Transit (PDAA)

Helmholtz Reciprocal Theorem - Physics

Hertevin - Language code (ETLW)

High Rate Tape (SAUS)

High-Rate Telemetry - NASA

High Resolution Timer (SAUS)

High-Resolution Tracker

Highway Regulating Team - Military technology (DDF)

Highway Regulation Team (SAUO)

Hillcrest Resources Ltd. - Toronto Stock Exchange symbol

Hiring, Retention, and Tenure - of college professors

Home Record Tape (SAUS)

Homogeneous Reactor Test

Homogenous Reactor Test

Honolulu Rapid Transit (SAUO)

Horizontal Return Tubular Burner (EDCT)

Hormone Replacement Therapy - Medicine

Hospitals Remuneration Tribunal - Australia

Hostage Rescue Team - Pronounced "hurt" - FBI standardized term

Human Resources Training

Hurt - Telegraphy (PCTE)

Hydraulic Retention Time

Mary Esther, FL - Location identifier - FAA (FAAL)

Scandinavian Yachts, Gainesville, FL - Manufacturer code for watercraft hull identification number (USCG)

Transporte Aereo Rioplatense - Argentina - ICAO designator (FAAC)

Heart (WPI)

Hertfordshire - County in England (WGA)