21-letter words containing a, m, i, t, r
- diapason normal pitch — a standard of pitch in which A above middle C is established at 435 vibrations per second.
- differential geometry — the branch of mathematics that deals with the application of the principles of differential and integral calculus to the study of curves and surfaces.
- disassortative mating — the reproductive pairing of individuals that have traits more dissimilar than would likely be the case if mating were random (contrasted with assortative mating).
- discriminant function — a linear function of measurements of different properties of an object or event that is used to assign the object or event to one population or another (discriminant analysis)
- disestablishmentarian — a person who favors the separation of church and state, especially the withdrawal of special rights, status, and support granted an established church by a state; an advocate of disestablishing a state church.
- disk operating system — DOS.
- display advertisement — an advertisement designed to attract attention by using devices such as conspicuous or elegant typefaces, graphics, etc
- distributed smalltalk — ["The Design and Implementation of Distributed Smalltalk", J. Bennett, SIGPLAN Notices 22(12):318-330 (Dec 1980)].
- earthmoving equipment — machines, such as bulldozers, that are used for excavating and moving large quantities of earth
- eastern daylight time — a time zone applicable to many eastern areas of the United States during the summer months, being a daylight-saving variant of Eastern Standard Time
- eastern european time — a standard time used by some countries in Eastern Europe, such as Finland, Romania, etc and also some countries of the Middle East and North Africa
- eastern standard time — See under standard time.
- electric displacement — the electric flux density when an electric field exists in free space into which a dielectric is introduced
- electromagnetic field — a field of force associated with a moving electric charge equivalent to an electric field and a magnetic field at right angles to each other and to the direction of propagation
- electromagnetic pulse — a surge of electromagnetic radiation, esp one resulting from a nuclear explosion, which can disrupt electronic devices and, occasionally, larger structures and equipment
- electromyographically — By means of, or in terms of, electromyography.
- emotional correctness — pressure on an individual to be seen to feel the same emotion as others
- empire state building — New York City skyscraper
- empirical probability — a measure or estimate of the degree of confidence one may have in the occurrence of an event, defined as the proportion observed in a sample
- endoplasmic reticulum — an extensive intracellular membrane system whose functions include synthesis and transport of lipids and, in regions where ribosomes are attached, of proteins
- enharmonic modulation — a change of key achieved by regarding a note in one key as an equivalent note in another. Thus E flat in the key of A flat could be regarded as D sharp in the key of B major
- entrance requirements — the grades in school examinations required for admission to university
- environmental studies — a university course studying the environment and related issues
- exposure compensation — the act of overriding a camera's automatic exposure in order to achieve a particular effect or due to difficult lighting conditions
- faculty board meeting — a meeting of the governing body of a faculty
- ferric sodium oxalate — an emerald-green, crystalline, extremely water-soluble salt, used in photography and blueprinting.
- flotation compartment — in a boat, an enclosed section filled with air or gas to give buoyancy
- fort lesley j. mcnair — a military reservation in SW Washington, D.C., on the Potomac River, SW of the Capitol.
- forward compatibility — (jargon) The ability to accept input from later versions of itself. Forward compatibility is harder to achieve than backward compatibility, since, in the backward case, the input format is know whereas a forward compatible system needs to cope gracefully with unknown future features. An example of future compatibility is the stipulation that a web browser should ignore HTML tags it does not recognise. See also extensible.
- fragmentation grenade — a grenade with a heavy metal casing that shatters, on exploding, into fragments that travel at high speed and with great force.
- framing specification — A specification of the "protocol bits" that surround the "data bits" on a communications channel to allow the data to be "framed" into chunks, like start and stop bits in EIA-232. It allows a receiver to synchronize at points along the data stream.
- franco-belgian system — French system.
- frankfort on the main — a city in W central Germany, on the Main River.
- functional imperative — a requirement for the survival of any social system, as communication, control of conflict, or socialization.
- gastrohepatic omentum — lesser omentum.
- gender disappointment — a feeling of depression or anxiety experienced by an expectant parent when the gender of the baby does not match his or her preference
- general court-martial — a court-martial having the authority to try any offense against military law and to impose a sentence of dishonorable discharge or of death when provided by law.
- general of the armies — a special rank held by John J. Pershing, equivalent to general of the army.
- get in someone's hair — any of the numerous fine, usually cylindrical, keratinous filaments growing from the skin of humans and animals; a pilus.
- glen of imaal terrier — a strongly-built medium-sized variety of terrier with a medium-length coat and short forelegs
- glyceryl tripalmitate — palmitin.
- government in waiting — a political group which is hoping to be elected to govern in the near future
- gram-molecular weight — gram molecule. Abbreviation: GMW.
- grammatical inference — Deducing a grammar from given examples. Also known as "inductive inference" and recently as "computational learning".
- great smoky mountains — the W part of the Appalachians, in W North Carolina and E Tennessee. Highest peak: Clingman's Dome, 2024 m (6642 ft)
- gretna green marriage — marriage without parental consent; elopement.
- ground-effect machine — ACV (def 2).
- highest common factor — greatest common divisor. Abbreviation: H.C.F.
- home improvement loan — a government loan for house improvements such as insulation, adding a bathroom, or urgent repairs
- human rights activist — a person who campaigns for human rights