25-letter words containing t, s

massacre of the innocents — the slaughter of all the young male children of Bethlehem at Herod's command in an attempt to destroy Jesus (Matthew 2:16–18)
maximum transmission unit — (networking) (MTU) The largest number of bytes of "payload" data a frame can carry, not counting the frame's header and trailer. A frame is a single unit of transportation on the data link layer. It consists of header data plus data which was passed down from the network layer (e.g. an IP datagram) plus sometimes trailer data. An Ethernet (V2) frame has a MTU of 1500 bytes but the size of the frame can be up to 1526 bytes (22 byte header, 4 byte CRC trailer). See also fragmentation.
memorandum of association — a document giving details such as the company's name, the purpose of the company, and the address of its registered office that is legally required when incorporating a company in certain countries such as the UK
message passing interface — (communications, protocol) A de facto standard for communication among the nodes running a parallel program on a distributed memory system. MPI is a library of routines that can be called from Fortran and C programs. MPI's advantage over older message passing libraries is that it is both portable (because MPI has been implemented for almost every distributed memory architecture) and fast (because each implementation is optimised for the hardware it runs on).
metal oxide semiconductor — a three-layer sandwich of a metal, an insulator (usually an oxide of the substrate), and a semiconductor substrate, used in integrated circuits. Abbreviation: MOS.
methylrosaniline chloride — gentian violet.
miguel hidalgo y costilla — Miguel [mee-gel] /miˈgɛl/ (Show IPA), 1753–1811, Mexican priest, patriot, and revolutionist.
minimal brain dysfunction — (no longer in technical use) attention deficit disorder.
mohorovicic discontinuity — the discontinuity between the crust and the mantle of the earth, occurring at depths that average about 22 miles (35 km) beneath the continents and about 6 miles (10 km) beneath the ocean floor.
mpc level 1 specification — (multimedia) The original Multimedia Personal Computer specification. Minimum requirements are a 16 MHz 386SX with 2 megabytes of RAM, a 30 MB hard disk drive, and a CD-ROM drive with a sustained data transfer rate of 150 KB/s at no more than 40% of CPU bandwidth and reading at least 16 KB blocks. The maximum average seek time is 1 second and the Mean Time Between Failure 10000 hours. Capability Mode 1. The computer must have 8-bit digital sound and an 8-note synthesizer with MIDI playback. Sample rates of 22.05 and 11.025 kHz must be supported by no more than 10% of CPU bandwidth, preferably 44.1 kHz at no more than 15% of CPU bandwidth. The synthesizer must support multi-voice, multi-timbral generation of six simultaneous melody notes and two simultaneous percussive notes with internal mixing capabilities to combine input from three sources and present the output as a stereo, line-level audio signal at the back panel. The video display must have a resolution of at least 640 x 480 in 16 colours. MIDI, I/O, and joystick ports must be previded. Compare MPC Level 2 Specification.
mpc level 2 specification — (multimedia) An improved version of the MPC Level 1 Specification for Multimedia Personal Computers. Minimum requirements are a 25 Mhz 486SX with 4 MB of RAM and a 160 MB hard disk drive. The CD-ROM drive must support a sustained data transfer rate of 300 KB/s using at most 60% of CPU bandwidth on 16 KB minimum block read size. Its average seek time must be 400 milliseconds maximum. Capability Mode 1, Mode 2 form 1, Mode 2 form 2, Multisession. It must be CD-ROM XA-ready. The computer must have 16-bit digital sound, an 8-note synthesizer, and MIDI playback. A sample rate of 44.1 kHz must be available on stereo channels with more than 15% of CPU bandwidth. A video display with a resolution of 640 x 480 in 65,536 colours, and MIDI, I/O, and joystick ports must be provided.
multi-scene control board — preset board.
multiple mirror telescope — a reflecting telescope on Mount Hopkins, in Arizona, that features six computer-linked mirrors set on a single mount. Abbreviation: MMT.
murders in the rue morgue — a short story (1841) by Edgar Allan Poe.
nail in the coffin of sth — If you say that one thing is a nail in the coffin of another thing, you mean that it will help bring about its end or failure.
national advanced systems — (company) (NAS) A company, previously known as ITEL, that made IBM plug-compatible hardware and was bought by Hitachi.
national enterprise board — a public corporation established in 1975 to help the economy of the UK. In 1981 it merged with the National Research and Development Council to form the British Technology Group
national insurance number — a number allocated to UK citizens so that they can pay national insurance
national security council — the council, composed of the president, vice president, secretary of state, secretary of defense, director of the Central Intelligence Agency and the chairman of the Joint Chiefs of Staff, that determines means by which domestic, foreign, and military policy can best be integrated for safeguarding the national security. Abbreviation: NSC.
net positive suction head — The net positive suction head is a measure of a pump's performance.
network computing devices — (company) (NCD) Producer of X terminals, PC-Xware and Z-Mail.
network operations center — (NOC) A location from which the operation of a network or internet is monitored. Additionally, this center usually serves as a clearinghouse for connectivity problems and efforts to resolve those problems. See also Network Information Center.
neurocirculatory asthenia — cardiac neurosis.
never do things by halves — If you say that someone never does things by halves, you mean that they always do things very thoroughly.
nine/seven/ten-day wonder — If you say that someone or something is a nine -day wonder or a one -day wonder, you disapprove of the fact that they are attracting so much interest and attention, because you think that their popularity will only last for a very short time.
no disrespect (to sb/sth) — You can say 'no disrespect to someone or something' when you are just about to criticize them, in order to indicate that you are not hostile towards them or admire them for other things.
not darken someone's door — not come to someone's home
not know what has hit one — to be completely taken by surprise
not take no for an answer — to continue in a course of action despite refusals
nothing to choose between — (of two people or objects) almost equal
observational equivalence — Two terms M and N are observationally equivalent iff for all contexts C[] where C[M] is a valid term, C[N] is also a valid term with the same value.
occupational psychologist — a person who makes a study of human behaviour at work, including ergonomics, selection procedures, and the effects of stress
of someone's acquaintance — A person of your acquaintance is someone who you have met and know.
off the top of one's head — the upper part of the body in humans, joined to the trunk by the neck, containing the brain, eyes, ears, nose, and mouth.
off-balance sheet reserve — a sum of money or an asset that should appear on a company's balance but does not; hidden reserve
on the big/small etc side — If you say that something is on the small side, you are saying politely that you think it is slightly too small. If you say that someone is on the young side, you are saying politely that you think they are slightly too young.
on the edge of one's seat — If you say that someone is on the edge of their seat or chair, you mean that they are very interested in what is happening or what is going to happen.
on the horns of a dilemma — one of the bony, permanent, hollow paired growths, often curved and pointed, that project from the upper part of the head of certain ungulate mammals, as cattle, sheep, goats, or antelopes.
on the side of the angels — If you say that someone is on the side of the angels, you believe very strongly that what they are doing is right.
on the spur of the moment — a U -shaped device that slips over and straps to the heel of a boot and has a blunt, pointed, or roweled projection at the back for use by a mounted rider to urge a horse forward.
on the understanding that — with the condition that; providing
open educational resource — Usually, open educational resources. a piece of content or a tool for teaching or learning, often developed online, that is made available free of charge for anyone to use, revise, adapt, or redistribute. Abbreviation: OER.
open systems interconnect — Open Systems Interconnection
organizational psychology — the study of the structure of an organization and of the ways in which the people in it interact, usually undertaken in order to improve the organization
orpheus in the underworld — a classical operetta; the French name is Orphée aux enfers
out of sight, out of mind — If you say 'out of sight, out of mind', you mean that people quickly forget someone if he or she goes away.
outside broadcasting unit — a mobile studio from which broadcasts are made
own or similar occupation — A policyholder's own or similar occupation is the job that they were doing before they became disabled or a job with similar duties and training.
oxidative phosphorylation — the aerobic synthesis, coupled to electron transport, of ATP from phosphate and ADP.
page description language — a high-level programming language for determining the output of a page printer designed to work with it, independent of the printer's internal codes. Abbreviation: PDL.

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