TM or Tm and variants may refer to: Trademark, often indicated with the symbol ™ Trademark symbol
Businesses and organizations TM Forum, telecommunications and entertainment industry association TM Supermarket, a chain of supermarkets in Zimbabwe LAM Mozambique Airlines (IATA airline designator TM) Telekom Malaysia, telecommunications company Texas Mexican Railway (reporting mark TM) TM (cellular service), a telecommunications brand in the Philippines Toastmasters International, an international public speaking organization Toyota (NYSE symbol TM) Tokyo Metro, one of the major subway systems of Tokyo
Science and technology
Biology and medicine Melting temperature (Tm) in nucleic acid thermodynamics, at which half of DNA strands are in the ssDNA state Transport maximum, where concentration increase does not speed membrane traversal Transverse myelitis, a neurological condition in which the spinal cord is inflamed Translational medicine TM domain, a membrane-spanning protein domain
Computing .tm, the Internet domain code for Turkmenistan Struct tm, calendar time type in the C and C++ programming languages Traceability matrix, in software development Translation memory Turing machine, a hypothetical universal computing machine
Physics and chemistry Tm ligands, a tridentate ligand used in coordination chemistry Melting point (abbreviated Tm), in physics and materials science Thulium, symbol Tm, a chemical element Transition metal Transverse magnetic modes, in optics and wave theory
Other uses in science and technology Thematic Mapper, an Earth-observing sensor on a Landsat satellite Terametre (Tm), equal to 1012 metres TM (triode) (from French ), standard small-signal vacuum tube of the Allies of World War I
Other uses Taskmaster (TV series), a British TV comedy show adapted in several other countries. Thames Measurement, a shipping tonnage measure Their Majesties, for multiple monarchs each styled "His/Her Majesty" Torpedoman's mate, a former rank of the U.S. Navy Transcendental Meditation, a specific form of mantra meditation Trans-Manhattan Expressway, a highway in New York City Turkmenistan (ISO country code TM) TrackMania, a Nadeo game TM (album), an album by Brockhampton