18-letter words containing m, a, t, i, p
- geometrical optics — the branch of optics dealing with light as rays, especially in the study of the effects of lenses and mirrors on light beams and of their combination in optical instruments.
- giant peacock moth — the largest European moth, an emperor, Saturnia pyri, reaching 15 cm (6 in.) in wingspan. It is mottled brown with a prominent ocellus on each wing and being night-flying can be mistaken for a bat
- grampian mountains — a mountain system of central Scotland, extending from the southwest to the northeast and separating the Highlands from the Lowlands. Highest peak: Ben Nevis, 1344 m (4408 ft)
- gravity escapement — an escapement, used especially in large outdoor clocks, in which the impulse is given to the pendulum by means of a weight falling through a certain distance.
- hamilton's problem — Hamiltonian problem
- hearing impairment — partial deafness
- hermaphrodite brig — a two-masted sailing vessel, square-rigged on the foremast and fore-and-aft-rigged on the mainmast.
- 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.
- human rights group — a group that campaigns for human rights
- hydroxytryptamines — Plural form of hydroxytryptamine.
- hyper-metaphorical — a figure of speech in which a term or phrase is applied to something to which it is not literally applicable in order to suggest a resemblance, as in “A mighty fortress is our God.”. Compare mixed metaphor, simile (def 1).
- 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.
- imaginary operator — An imaginary operator is the part of a complex number that defines the magnitude of the part of the complex number at right angles to the real number part.
- impedance matching — the technique of choosing or adjusting electric circuits and components so that the impedance of the load is equal to the internal impedance of the power source, thereby optimizing the power transfer from source to load.
- impingement attack — a form of corrosion of metals caused by erosion of the oxide layer by a moving fluid in which there are suspended particles or air bubbles
- imploded consonant — a consonant which is pronounced with or by implosion
- 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 compliance with — in accordance with
- incremental backup — (operating system) A kind of backup that copies all files which have changed since the date of the previous backup. The first backup of a file system should include all files - a "full backup". Call this level 0. The next backup could also be a full level 0 backup but it is usually much quicker to do a level 1 backup which will include only those files which have changed since the level 0 backup. Together the level 0 and level 1 backups will include the latest version of every file. Level 1 backups can be made until, say, the backup tape is nearly full, after which we can switch to level 2. Each level includes those files which have changed since the last backup at a lower level. The more levels you use, the longer it will take to restore the latest version of a file (or all files) if you don't know when it was last modified. Compare differential backup.
- 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.
- investment company — a company that invests its funds in other companies and issues its own securities against these investments.
- iomega corporation — (company, storage) A storage device manufacturer whose major products are the Zip and Jaz removable disk drives and Ditto tape drives. They became popular with an early product called the Bernoulli Box. These products fall in line with their focus set in 1994 "to help people manage their stuff". The company's stated aim is to create portable, fast, large and cheap storage solutions. Iomega's major competitor in the growing market for removable disks is SyQuest, who seem to always be a few weeks behind them. In general, Iomega target the Small Office/Home Office. They are also investigating the growing digital photography market which also needs large removable storage devices. Iomega's president and CEO is Kim Edwards. They have nearly 2000 employees in offices world-wide. Revenue for the quarter ending Dec 1996 was $371 million and net income was $20 million. Headquarters: Roy, Utah, USA.
- isothermal process — a process that takes place without change in temperature.
- justice department — the United States federal department for enforcing federal laws
- 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.
- limestone pavement — a horizontal surface of exposed limestone in which the joints have been enlarged, cutting the surface into roughly rectangular blocks
- logarithmic spiral — log r = aθ
- logical complement — (logic) In Boolean algebra, the logical complement or negation of a Boolean value is the opposite value, given by the following truth table: A | -A --+--- T | F F | T -A is also written as A with a bar over it or with a small vertical line hanging from the right-hand end of the "-" (LaTeX \neg) or as A'. In the C programming language, it is !A and in digital circuit design, /A.
- logical positivism — a philosophical movement that stresses the function of philosophy as a method of criticizing and analyzing science and that rejects all transcendental metaphysics, statements of fact being held to be meaningful only if they have verifiable consequences in experience and in statements of logic, mathematics, or philosophy itself, and with such statements of fact deriving their validity from the rules of language.
- lone-parent family — a family in which there is only one parent
- magnetic amplifier — an amplifier that applies the input signal to a primary winding and feeds an alternating current to a secondary winding where this current is modulated by the variations in the primary winding.
- magnetic potential — a scalar quantity, analogous to the electric potential, defined at each point in a given magnetic field to be equal to the work done in bringing a unit north pole from infinity to the point.
- magnetic tape unit — a computer device that moves reels of magnetic tape past read-write heads so that data can be transferred to or from the computer
- make a practice of — be in the habit of
- malpighian tubules — one of a group of long, slender excretory tubules at the anterior end of the hindgut in insects and other terrestrial arthropods.
- maritime provinces — region in Canada
- market opportunity — a situation in which a company can meet an unsatisfied customer need before its competitors
- marketing campaign — a series of coordinated activities designed to help market a product
- maternity hospital — birthing facility
- metamorphic facies — Geology. a group of metamorphic rock units characterized by particular mineralogic associations.
- methylated spirits — ethyl alcohol denatured with methyl alcohol for the purpose of preventing its use as an alcoholic beverage.
- mexican fire-plant — a showy plant, Euphorbia heterophylla, of the spurge family, growing in the central U.S. to central South America, having red or mottled red and white bracts.
- microencapsulation — the process of enclosing chemical substances in microcapsules.
- micrometer caliper — calipers with a micrometer screw, for extremely accurate measurement
- micrometer-caliper — any of various devices for measuring minute distances, angles, etc., as in connection with a telescope or microscope.
- micropalaeontology — the branch of palaeontology concerned with the study of microscopic fossils