18-letter words containing h, i, s, t, a, m
- genetic algorithms — genetic algorithm
- go with the stream — to conform to the accepted standards
- hamilton's problem — Hamiltonian problem
- hand it to someone — to give credit to someone
- heat of combustion — the heat evolved when one mole of a substance is burnt in oxygen at constant volume
- higher mathematics — the advanced portions of mathematics, customarily considered as embracing all beyond ordinary arithmetic, geometry, algebra, and trigonometry.
- histamine headache — cluster headache.
- histocompatibility — the condition of having antigenic similarities such that cells or tissues transplanted from one (the donor) to another (the recipient) are not rejected.
- histomorphological — histology.
- honour moderations — (at Oxford University) the first public examination, in which candidates are placed into one of three classes of honours
- human rights group — a group that campaigns for human rights
- hydroxytryptamines — Plural form of hydroxytryptamine.
- hyperaldosteronism — aldosteronism.
- hypercholesteremia — Alternative spelling of hypercholesteraemia.
- hypoparathyroidism — Diminished concentration of parathyroid hormone in the blood, which causes deficiencies of calcium and phosphorus compounds in the blood and results in muscular spasms.
- immunohistological — the microscopic study of tissues with the aid of antibodies that bind to tissue components and reveal their presence.
- in company with sb — If you feel, believe, or know something in company with someone else, you both feel, believe, or know it.
- in comparison with — when compared to
- in the name of sth — If you do something in the name of an ideal or an abstract thing, you do it in order to preserve or promote that thing.
- in the same breath — the air inhaled and exhaled in respiration.
- inner automorphism — an automorphism that maps an element x into an element of the form axa −1 where a −1 is the inverse of a.
- isothermal process — a process that takes place without change in temperature.
- king-of-the-salmon — a ribbonfish, Trachypterus altivelis, of northern parts of the Pacific Ocean.
- kitchen-sink drama — a type of drama of the 1950s depicting the sordid aspects of domestic reality
- light displacement — the weight of a ship with all its permanent equipment, excluding the weight of cargo, persons, ballast, dunnage, and fuel, but usually including the weight of permanent ballast and water used to operate steam machinery.
- literae humaniores — (at Oxford University) the faculty concerned with Greek and Latin literature, ancient history, and philosophy; classics
- logarithmic spiral — log r = aθ
- logarithmus dualis — (mathematics) (ld) Latin for logarithm base two. More commonly written as "log" with a subscript "2". Roughly the number of bits required to represent an integer.
- magic switch story — Some years ago, I was snooping around in the cabinets that housed the MIT AI Lab's PDP-10, and noticed a little switch glued to the frame of one cabinet. It was obviously a homebrew job, added by one of the lab's hardware hackers (no-one knows who). You don't touch an unknown switch on a computer without knowing what it does, because you might crash the computer. The switch was labelled in a most unhelpful way. It had two positions, and scrawled in pencil on the metal switch body were the words "magic" and "more magic". The switch was in the "more magic" position. I called another hacker over to look at it. He had never seen the switch before either. Closer examination revealed that the switch had only one wire running to it! The other end of the wire did disappear into the maze of wires inside the computer, but it's a basic fact of electricity that a switch can't do anything unless there are two wires connected to it. This switch had a wire connected on one side and no wire on its other side. It was clear that this switch was someone's idea of a silly joke. Convinced by our reasoning that the switch was inoperative, we flipped it. The computer instantly crashed. Imagine our utter astonishment. We wrote it off as coincidence, but nevertheless restored the switch to the "more magic" position before reviving the computer. A year later, I told this story to yet another hacker, David Moon as I recall. He clearly doubted my sanity, or suspected me of a supernatural belief in the power of this switch, or perhaps thought I was fooling him with a bogus saga. To prove it to him, I showed him the very switch, still glued to the cabinet frame with only one wire connected to it, still in the "more magic" position. We scrutinized the switch and its lone connection, and found that the other end of the wire, though connected to the computer wiring, was connected to a ground pin. That clearly made the switch doubly useless: not only was it electrically nonoperative, but it was connected to a place that couldn't affect anything anyway. So we flipped the switch. The computer promptly crashed. This time we ran for Richard Greenblatt, a long-time MIT hacker, who was close at hand. He had never noticed the switch before, either. He inspected it, concluded it was useless, got some diagonal cutters and diked it out. We then revived the computer and it has run fine ever since. We still don't know how the switch crashed the machine. There is a theory that some circuit near the ground pin was marginal, and flipping the switch changed the electrical capacitance enough to upset the circuit as millionth-of-a-second pulses went through it. But we'll never know for sure; all we can really say is that the switch was magic. I still have that switch in my basement. Maybe I'm silly, but I usually keep it set on "more magic".
- malpighian tubules — one of a group of long, slender excretory tubules at the anterior end of the hindgut in insects and other terrestrial arthropods.
- manchester terrier — one of a breed of slender terriers having a short, glossy, black-and-tan coat, raised originally in Manchester, England.
- manhattan district — (during World War II) the code name for a unit of US army engineers established in 1942 to construct secret sites for the development of the atomic bomb
- marketing research — the study of influences upon customer and consumer behaviour and the analysis of market characteristics and trends
- materials handling — the loading, unloading, and movement of goods, as within a factory or warehouse, especially by the aid of mechanical devices.
- maternity hospital — birthing facility
- matthias schleiden — Matthias Jakob [mah-tee-ahs yah-kawp] /mɑˈti ɑs ˈyɑ kɔp/ (Show IPA), 1804–81, German botanist.
- mechanical testing — Mechanical testing is the testing of a material to find out its mechanical properties, for example its yield strength or hardness.
- median lethal dose — the quantity of a lethal substance, as a poison or pathogen, or of ionizing radiation that will kill 50 percent of the organisms subjected to it in a specified time period. Symbol: LD 5 0.
- menthol cigarettes — cigarettes that are flavoured with menthol
- metamorphic facies — Geology. a group of metamorphic rock units characterized by particular mineralogic associations.
- methacrylate resin — an acrylic resin formed by polymerizing the esters or amides of methacrylic acid.
- methylated spirits — ethyl alcohol denatured with methyl alcohol for the purpose of preventing its use as an alcoholic beverage.
- microsoft exchange — (messaging) Microsoft's messaging and enterprise collaboration server. Exchange's primary role is as an electronic mail message store but it can also store calendars, task lists, contact details, and other data.
- miniature pinscher — one of a German breed of toy dogs resembling a smaller version of the Doberman pinscher, having a flat skull, a smooth coat, erect ears, and a docked tail, bred originally as a watchdog.
- minister of health — a person appointed to head the government department of health
- moccasin telegraph — the transmission of rumour or secret information; the grapevine
- mount saint helens — a city in Merseyside, in NW England, near Liverpool.
- neo-pythagoreanism — a philosophical system, established in Alexandria and Rome in the second century b.c., consisting mainly of revived Pythagorean doctrines with elements of Platonism and Stoicism.
- nightmare scenario — If you describe a situation or event as a nightmare scenario, you mean that it is the worst possible thing that could happen.
- nike of samothrace — a Greek marble statue (c200 b.c.) of Nike found at Samothrace and now in the Louvre, Paris.