TM or Tm and variants may refer to: *

Trademark A trademark (also written trade mark or trade-mark) is a form of intellectual property that consists of a word, phrase, symbol, design, or a combination that identifies a Good (economics and accounting), product or Service (economics), service f ...

, 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 gove ...

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, clo ...

, telecommunications and entertainment industry association * TM Supermarket, 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 (), is the flag carrier of Mozambique. The airline was established by the Portuguese c ...

(IATA airline designator TM) *

Telekom Malaysia Telekom Malaysia Berhad or simply TM is a Malaysian telecommunications company that was founded in 1984. Beginning as the national telecommunications company for fixed line, radio, and television broadcasting services, it has evolved to become ...

, telecommunications company *

Texas Mexican Railway The Texas Mexican Railway was a short line railroad in the U.S. state of Texas operating between Corpus Christi and the Texas Mexican Railway International Bridge in Laredo, Texas. It is often referred to as the Tex Mex, or Tex Mex Railway. ...

(reporting mark TM) * TM (cellular service), a telecommunications brand in the Philippines *

Toastmasters International Toastmasters International (TI) is a US-headquartered nonprofit educational organization that operates clubs worldwide for the purpose of helping people develop communication, public speaking, and leadership skills. History On 24 March 1905, Dr ...

, an international public speaking organization *

Toyota Motor Corporation is a Japanese Multinational corporation, multinational Automotive industry, automotive manufacturer headquartered in Toyota City, Aichi, Japan. It was founded by Kiichiro Toyoda and incorporated on August 28, 1937. Toyota is the List of manuf ...

(NYSE symbol TM) *

Tokyo Metro The Tokyo Metro () is a major rapid transit system in Tokyo, Japan, operated by the #Organization, Tokyo Metro Co. With an average daily ridership of 6.52 million passengers (as of 2023), the Tokyo Metro is the larger of the Tokyo subway, two s ...

, 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 ...

, at which half of DNA strands are in the ssDNA state * Transport maximum, where concentration increase does not speed membrane traversal *

Transverse myelitis Transverse myelitis (TM) is a rare neurological condition wherein the spinal cord is Inflammation, inflamed. The adjective ''wikt:transverse#Adjective, transverse'' implies that the spinal inflammation (myelitis) extends horizontally throughout ...

, a neurological condition in which the spinal cord is inflamed *

Translational medicine Translational medicine (often called translational science, of which it is a form) develops the clinical practice applications of the basic science aspects of the biomedical sciences; that is, it translates basic science to applied science in me ...

* TM domain, a membrane-spanning protein domain

Computing

* .tm, the Internet domain code for Turkmenistan *

Struct tm In computer science, a record (also called a structure, struct, or compound data type) is a composite data structure a collection of fields, possibly of different data types, typically fixed in number and sequence. For example, a date could b ...

, 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 A translation memory (TM) is a database that stores "segments", which can be sentences, paragraphs or sentence-like units (headings, titles or elements in a list) that have previously been translated, in order to aid human translators. The trans ...

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 of matter, state from solid to liquid. At the melting point the solid and liquid phase (matter), phase exist in Thermodynamic equilib ...

(abbreviated T_m), in physics and materials science *

Thulium Thulium is a chemical element; it has symbol Tm and atomic number 69. It is the thirteenth element in the lanthanide series of metals. It is the second-least abundant lanthanide in the Earth's crust, after radioactively unstable promethium. It i ...

, 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. The lanthanide and actinid ...

Transverse magnetic A transverse mode of electromagnetic radiation is a particular electromagnetic field pattern of the radiation in the plane perpendicular (i.e., transverse) to the radiation's Wave propagation, propagation direction. Transverse modes occur in rad ...

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 ( Commo ...

, 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 o ...

, a Soviet World War II mine **

TM-46 mine The TM-46 mine is a large, circular, metal-cased Soviet anti-tank mine. It uses either a pressure or tilt-rod fuze, which is screwed into the top. Anti-tank mines with this type of fuze were capable of inflicting much more damage to armored veh ...

, a Soviet post-war mine ** TM-57 mine, a Soviet Cold War mine **

TM-62 series of mines The TM-62 is a series of Soviet anti-tank blast mines produced in various variants. It served as the primary anti-tank landmine for the Soviet military. It has a central fuze and typically a explosive charge, but the variants differ greatly i ...

, a series of Soviet Cold War blast mines **

TM-83 mine The TM-83 is a Soviet off-route anti-tank mine with a shaped charge, developed in 1983, and first shown publicly in 1993. The mine utilises the Misznay Schardin effect to create an armour-penetrating projectile, and is activated using its infrared ...

, 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 fu ...

, a 1990s Russian mine

Other uses in science and technology

Thematic Mapper A Thematic Mapper (TM) is one of the Earth observing sensors introduced in the Landsat program. The first was placed aboard Landsat 4 (decommissioned in 2001), and another was operational aboard Landsat 5 up to 2012. /sup> TM sensors feature seven ...

, an Earth-observing sensor on a Landsat satellite *

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

(Tm), equal to 10¹² metres *

TM (triode) The TM (from , 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 for the French Army, became ...

(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 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 , meaning ) is used as a manner of address by many monarchs, usually kings or queens. Where used, the style outranks the style of ''(Imperial/Roy ...

" * Torpedoman's mate, a former rank of the U.S. Navy * Transcendental Meditation, a specific form of mantra meditation *

Trans-Manhattan Expressway Interstate 95 (I-95) is part of the Interstate Highway System and runs from Miami, Florida, to the Canada–United States border near Houlton, Maine. In the US state of New York, I-95 extends from the George Washington Bridge in New Yor ...

, a highway in New York City *

Turkmenistan Turkmenistan is a landlocked country in Central Asia bordered by Kazakhstan to the northwest, Uzbekistan to the north, east and northeast, Afghanistan to the southeast, Iran to the south and southwest and the Caspian Sea to the west. Ash ...

(ISO country code TM) *

TrackMania ''TrackMania'' is a series of racing games for Microsoft Windows, PlayStation 4, PlayStation 5, Xbox One, Xbox Series X and Series S, Nintendo DS, and Wii developed by Ubisoft Nadeo and Firebrand Games. In ''TrackMania'' the player can creat ...

, a Nadeo game * ''TM'' (album), an album by Brockhampton {{disambiguation