What is "eht"

EHT may stand for:

• Eastern Harbour Tunnel, a tunnel in Hong Kong
• Eicosanoyl-5-HydroxyTryptamide, a dietary supplement reputed to be neuroprotective
• Euro Hockey Tour, a series of ice hockey tournaments
• Event Horizon Telescope, a proposed array of telescopes designated to compile images of Sagittarius A*
• Extended Hückel theory, a semiempirical quantum chemistry computational method
• Extended Heim theory, a non-mainstream theory of physics
• Extra high tension, an extremely high electrical voltage