What does TRH stand for?

Airmark Aviation, Inc. - ICAO designator (FAAC)

Tape Reading Head (SAUS)

Tape Relay Heading (SAUS)

Technical Reference Handbook

Test Requirements Handbook (MUGU)

Their Royal Highnesses

Thyroid-Releasing Hormone (SAUS)

Thyroid-Stimulating Hormone Releasing Hormone (DB)

Thyrotrophin-Releasing Hormone - Formerly, TRF - Endocrinology

Thyrotropin-Releasing Hormone (SAUS)

Transatlantic Holdings - NYSE symbol (SPSG)

Triomphe-Francais - NCIC firearms make code (NCIC)

Truss Head - Engineering

Turaka - Language code (ETLW)

Tyrosinhydroxylase (SAUS)

United States Army TRADOC, Fort Benjamin Harrison Library System, Fort Benjamin Harrison, IN - OCLC symbol (OCLC)