TM or Tm and variants may refer to: *

Trademark A trademark (also written trade mark or trade-mark) is a type of intellectual property consisting of a recognizable sign, design, or expression that identifies products or services from a particular source and distinguishes them from others ...

, often indicated with the symbol ™ **

Trademark symbol The trademark symbol is a symbol to indicate that the preceding mark is a trademark, specifically an unregistered trademark. It complements the registered trademark symbol which is reserved for trademarks registered with an appropriate gov ...

Businesses and organizations

TM Forum TM Forum is a global industry association for service providers and their suppliers in the telecommunications industry. Members include communications and digital service providers, telephone companies, cable operators, network operators, cloud ...

, telecommunications and entertainment industry association *

TM Supermarket TM Supermarket is a chain of supermarkets in Zimbabwe. They have branches in all cities and in most Zimbabwean towns. They are a part of the Meikles group of companies, though Pick n Pay Stores, a South African retailer, took control of 49% of TM Su ...

, a chain of supermarkets in Zimbabwe *

LAM Mozambique Airlines LAM - Mozambique Airlines, S. A. (LAM - Linhas Aéreas de Moçambique, S. A.) or Linhas Aéreas de Moçambique, Ltd., operating as LAM Mozambique Airlines ( pt, LAM Linhas Aéreas de Moçambique), is the flag carrier of Mozambique. The airline ...

(IATA airline designator TM) * Telekom Malaysia, telecommunications company * Texas Mexican Railway (reporting mark TM) *

TM (cellular service) TM (formerly known as Islacom, Touch Mobile, and Republika ng TM and also known as TM Tambayan) is a Filipino cellular service brand of Filipino telecommunications company Globe Telecom. History TM was launched on September 12, 2001, as Touch Mo ...

, a telecommunications brand in the Philippines * Toastmasters International, an international public speaking organization * Toyota Motor Corporation (NYSE symbol TM) * Tokyo Metro, one of the major subway systems of Tokyo

Science and technology

Biology and medicine

* Melting temperature (T_m) in

nucleic acid thermodynamics Nucleic acid thermodynamics is the study of how temperature affects the nucleic acid structure of double-stranded DNA (dsDNA). The melting temperature (''Tm'') is defined as the temperature at which half of the DNA strands are in the random coil o ...

, at which half of DNA strands are in the ssDNA state *

Transport maximum In physiology, transport maximum (alternatively Tm or Tmax) refers to the point at which increase in concentration of a substance does not result in an increase in movement of a substance across a cell membrane. In renal physiology, the concept of ...

, where concentration increase does not speed membrane traversal * Transverse myelitis, a neurological condition in which the spinal cord is inflamed *

Translational medicine Translational medicine (often called translational science, of which it is a form) is defined by the European Society for Translational Medicine as "an interdisciplinary branch of the biomedical field supported by three main pillars: benchside, beds ...

Computing

.tm .tm is the Internet country code top-level domain (ccTLD) for Turkmenistan. It is operated by Internet Computer Bureau. Nic.tm offers domain name purchase, registration, management and renewal as well as Internationalized Domain Name registrati ...

, the Internet domain code for Turkmenistan *

Struct tm The C date and time functions are a group of functions in the standard library of the C programming language implementing date and time manipulation operations. They provide support for time acquisition, conversion between date formats, and form ...

, calendar time type in the C and C++ programming languages *

Traceability matrix In software development, a traceability matrix (TM) is a document, usually in the form of a table, used to assist in determining the completeness of a relationship by correlating any two baselined documents using a many-to-many relationship com ...

, in software development * Translation memory *

Turing machine A Turing machine is a mathematical model of computation describing an abstract machine that manipulates symbols on a strip of tape according to a table of rules. Despite the model's simplicity, it is capable of implementing any computer algori ...

, a hypothetical universal computing machine

Physics and chemistry

* Tm ligands, a tridentate ligand used in coordination chemistry *

Melting point The melting point (or, rarely, liquefaction point) of a substance is the temperature at which it changes state from solid to liquid. At the melting point the solid and liquid phase exist in equilibrium. The melting point of a substance depends ...

(abbreviated T_m), in physics and materials science * Thulium, symbol Tm, a chemical element *

Transition metal In chemistry, a transition metal (or transition element) is a chemical element in the d-block of the periodic table (groups 3 to 12), though the elements of group 12 (and less often group 3) are sometimes excluded. They are the elements that can ...

* Transverse Magnetic modes, in optics and wave theory

Weapons

TM 65 mine The TM 65 (Telamiina 65) is a circular Finnish minimum metal anti-tank blast mine. It is broadly based on the Russian ''TM-62 mine''. The mines body is made from a thin shell of fibreglass Fiberglass (American English) or fibreglass (Commonw ...

, a Finnish anti-tank mine * TM series of Soviet and Russian anti-tank mines **

TM-41 mine The TM-41 was a circular, metal-cased Soviet anti-tank landmine used during the Second World War. The mines case consisted of a short cylinder with the entire top surface being used as a pressure plate. The mine has a carrying handle on the side of ...

, a Soviet World War II mine ** TM-46 mine, a Soviet post-war mine ** TM-57 mine, a Soviet Cold War mine ** TM-62 series of mines, a series of Soviet Cold War blast mines **

TM-83 mine The TM-83 is a Soviet off-route shaped charge anti-tank mine, first shown publicly in 1993, and developed in 1983. The mine consists of a large Misznay Schardin effect warhead and is actived using its infra-red and seismic sensors. Deployment ...

, a 1990s Russian mine **

TM-89 mine The TM-89 is a Russian anti-tank mine first publicly shown in 1993. The mine uses a Misznay Schardin effect warhead capable of producing a 60 mm diameter hole in 100 mm of armour. The mine is fitted with a two-channel magnetic influence f ...

, a 1990s Russian mine

Other uses in science and technology

* Thematic Mapper, an Earth-observing sensor on a Landsat satellite *

Terametre The following are examples of orders of magnitude for different lengths. __TOC__ Overview Detailed list To help compare different orders of magnitude, the following list describes various lengths between 1.6 \times 10^ metres and 10 ...

(Tm), equal to 10¹² metres *

TM (triode) The TM (from french: Telegraphie Militaire, also marketed as ''TM Fotos'' and ''TM Metal'') was a triode vacuum tube for amplification and demodulation of radio signals, manufactured in France from November 1915 to around 1935. The TM, developed ...

(from French ), standard small-signal vacuum tube of the Allies of World War I

People

Theresa May Theresa Mary May, Lady May (; née Brasier; born 1 October 1956) is a British politician who served as Prime Minister of the United Kingdom and Leader of the Conservative Party from 2016 to 2019. She previously served in David Cameron's cab ...

is sometimes referred to as TM

Other uses

Thames Measurement Thames Measurement, also known as Thames Tonnage, is a system for measuring ships and boats. It was created in 1855 as a variation of Builder's Old Measurement by the Royal Thames Yacht Club, and was designed for small vessels, such as yachts. It ...

, a shipping tonnage measure * ''Their Majesties'', for multiple monarchs each styled "His/Her

Majesty Majesty (abbreviated HM for His Majesty or Her Majesty, oral address Your Majesty; from the Latin ''maiestas'', meaning "greatness") is used as a manner of address by many monarchs, usually kings or queens. Where used, the style outranks the st ...

" * Torpedoman's mate, a former rank of the U.S. Navy *

Transcendental Meditation Transcendental Meditation (TM) is a form of silent mantra meditation advocated by the Transcendental Meditation movement. Maharishi Mahesh Yogi created the technique in India in the mid-1950s. Advocates of TM claim that the technique promotes a ...

, a specific form of mantra meditation * Trans-Manhattan Expressway, a highway in New York City *

Turkmenistan Turkmenistan ( or ; tk, Türkmenistan / Түркменистан, ) is a country located in Central Asia, bordered by Kazakhstan to the northwest, Uzbekistan to the north, east and northeast, Afghanistan to the southeast, Iran to the sout ...

(ISO country code TM) *

TrackMania ''TrackMania'' is a series of racing games for Microsoft Windows, PlayStation 4, PlayStation 5, Xbox One, Nintendo DS and Wii developed by Nadeo and Firebrand Games. Instead of following the usual trend of choosing a set car and track to play ...

, a Nadeo game *

TM (album) ''TM'' is the eighth and final studio album by American boy band Brockhampton. It was released on November 18, 2022, one day after the release of the group's previous studio album '' The Family'', through RCA and Question Everything. For its en ...

, an album by Brockhampton {{disambiguation