21-letter words containing p, e, r, m, a
- electrochromatography — chromatography effected by the influence of an applied electric field
- electroencephalograms — Plural form of electroencephalogram.
- 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.
- electronystagmography — A diagnostic test to record involuntary movements of the eye caused by a condition known as nystagmus. It can also be used to diagnose the cause of vertigo, dizziness or balance dysfunction by testing the vestibular system.
- 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
- epidermolysis bullosa — type of genetic skin disorder
- euro-commercial paper — commercial paper issued in a eurocurrency
- exposure compensation — the act of overriding a camera's automatic exposure in order to achieve a particular effect or due to difficult lighting conditions
- flotation compartment — in a boat, an enclosed section filled with air or gas to give buoyancy
- 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.
- frequent wash shampoo — a shampoo whose mildness allows it to be used frequently
- 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
- glyceryl tripalmitate — palmitin.
- government department — a sector of a national or state government that deals with a particular area of interest
- grease someone's palm — the part of the inner surface of the hand that extends from the wrist to the bases of the fingers.
- home improvement loan — a government loan for house improvements such as insulation, adding a bathroom, or urgent repairs
- hypercholesterolaemia — the condition of having a high concentration of cholesterol in the blood
- hyperlipoproteinaemia — the condition of having an abnormally high level of lipoproteins in the blood
- imprecise probability — (probability) A probability that is represented as an interval (as opposed to a single number) included in [0,1].
- information appliance — (hardware) (IA) A consumer device that performs only a few targeted tasks and is controlled by a simple touch-screen interface or push buttons on the device's enclosure.
- inner spring mattress — a mattress with a system of wire coils or springs inside for buoyancy or comfort purposes
- irish republican army — an underground Irish nationalist organization founded to work for Irish independence from Great Britain: declared illegal by the Irish government in 1936, but continues activity aimed at the unification of the Republic of Ireland and Northern Ireland. Abbreviation: IRA, I.R.A.
- joseph-marie jacquard — (person) /zhoh-zef' mah-ree' zhah-kar'/ (1752-07-07 to 1834-08-07) The inventor of the Jacquard loom.
- jump all over someone — to spring clear of the ground or other support by a sudden muscular effort; leap: to jump into the air; to jump out a window.
- madagascar periwinkle — a plant, Catharanthus roseus (or Vinca rosea), cultivated for its glossy foliage and pink or white flowers.
- magnetic permeability — permeability (def 2).
- magneto-optical drive — magneto-optical disk
- maidenhair spleenwort — an evergreen fern, Asplenium trichomanes, abundant in woody areas of the North Temperate Zone, having thickly clustered fronds.
- main-topsail schooner — a two-masted or three-masted schooner having square topsails on the foremast and mainmast: a jackass brig or jackass bark.
- make up for lost time — compensate for past inaction
- male pattern baldness — a pattern of hair loss in males, dependent on the presence of the androgenic hormone testoterone, in which the scalp hair eventually covers only the back of the head and temples.
- male-pattern baldness — inherited baldness characterized by the gradual loss of hair from the front or top of the head
- manufacturing process — chain of production
- maple-leaved viburnum — dockmackie.
- marine superintendent — a person who is responsible for the maintenance of the vessels of a shipping line, for their docking and the handling of cargo, and for the hiring of personnel for deck departments.
- marquise de pompadour — Marquise de (Jeanne Antoinette Poisson Le Normant d'Étioles) 1721–64, mistress of Louis XV of France.
- mass-market paperback — a relatively inexpensive paperbound book, typically measuring about 4½ × 7 inches (11 × 18 cm), that is distributed on newsstands, in supermarkets, etc., as well as in bookstores.
- medical jurisprudence — forensic medicine.
- megaspore mother cell — a diploid cell in plants that undergoes meiosis to create four haploid megaspores.
- metabotropic receptor — an indirect receptor which initiates an intracellular biochemical cascade after it is triggered by an agonistic ligand
- metropolitan district — any of the districts making up the metropolitan counties of England: since 1986 they have functioned as unitary authorities, forming the sole principal tier of local government. Each metropolitan district has an elected council responsible for education, social services, etc
- microware corporation — Authors of OS-9. Address: Des Moines, Iowa, USA.
- miniature photography — photography with a camera using film that is 35 millimeters wide or less.
- modern apprenticeship — an arrangement that allows a school leaver to gain vocational qualifications while being trained in a job
- mohammed reza pahlavi — 1919-80; shah of Iran (1941-79); deposed