18-letter words containing s, e, a, d, y
- haud your wheesht! — be silent! hush!
- head disk assembly — (hardware, storage) (HDA) A sealed, high capacity mainframe hard disk with integral heads, as opposed to a removable disk.
- heteroscedasticity — (statistics) The property of a series of random variables of 'not' every variable having the same finite variance.
- heteroskedasticity — Alternative spelling of heteroscedasticity.
- hexaphosphorylated — (biochemistry) phosphorylated with six units of phosphoric acid.
- hundred years' war — the series of wars between England and France, 1337–1453, in which England lost all its possessions in France except Calais.
- hydroxytryptamines — Plural form of hydroxytryptamine.
- hyperaldosteronism — aldosteronism.
- hypophosphorylated — (biochemistry) phosphorylated to a less than normal extent, or less than fully.
- industrial hygiene — the science that assesses, controls, and prevents occupational factors or sources of stress in the workplace that may significantly affect the health and well-being of employees or of the community in general
- infrared astronomy — the study of infrared radiation emitted by celestial objects.
- jerusalem syndrome — a delusive condition affecting some visitors to Jerusalem in which the sufferer identifies with a major figure from his or her religious background
- lay one's hands on — the terminal, prehensile part of the upper limb in humans and other primates, consisting of the wrist, metacarpal area, fingers, and thumb.
- lipopolysaccharide — any of a class of polysaccharides to which lipids are attached.
- magnetogasdynamics — magnetohydrodynamics.
- metabolic syndrome — Pathology. a group of medical conditions present simultaneously in a patient, as high blood pressure, low HDL cholesterol levels, and an excess of abdominal fat, that increases a person's risk of heart disease, stroke, and diabetes. Also called insulin resistance syndrome.
- methylated spirits — ethyl alcohol denatured with methyl alcohol for the purpose of preventing its use as an alcoholic beverage.
- mobile data system — a system consisting of a client computer requesting information and a server supplying this information
- monophosphorylated — (biochemistry) phosphorylated with a single unit of phosphoric acid.
- mucopolysaccharide — (formerly) glycosaminoglycan.
- mutual aid society — A mutual aid society is an organization that provides benefits or other help to its members when they are affected by things such as death, sickness, disability, old age, or unemployment.
- my lips are sealed — If you tell someone that your lips are sealed, you are promising them that you will keep a secret that they have told you.
- neuropsychodynamic — Of or pertaining to neuropsychodynamics.
- normally aspirated — A normally aspirated or naturally aspirated engine breathes air at atmospheric pressure.
- payload specialist — an astronaut trained to handle highly complex or classified equipment carried aboard a space shuttle and to conduct experiments in space.
- pennsylvania dutch — the descendants of 17th- and 18th-century settlers in Pennsylvania from southwest Germany and Switzerland.
- people's democracy — (in Communist ideology) a country or form of government in transition from bourgeois democracy to socialism. In this stage there is more than one class, the largest being the proletariat, led by the Communist Party, which is therefore the dominant power
- personal bodyguard — a person employed to protect a particular person
- phosphatidylserine — any of a class of phospholipids occurring in biological membranes and fats
- physical education — systematic instruction in sports, exercises, and hygiene given as part of a school or college program.
- play cat and mouse — Also called cat and rat. a children's game in which players in a circle keep a player from moving into or out of the circle and permit a second player to move into or out of the circle to escape the pursuing first player.
- play second fiddle — be considered less important
- population density — ratio: inhabitants to area
- positively charged — having a positive charge
- postviral syndrome — debilitating condition occurring as a sequel to viral illness
- programme of study — the prescribed syllabus that pupils must be taught at each key stage in the National Curriculum
- pseudo-symptomatic — pertaining to a symptom or symptoms.
- pyramus and thisbe — (in Greek legend) two lovers of Babylon: Pyramus, wrongly supposing Thisbe to be dead, killed himself and she, encountering him in his death throes, did the same
- quevedo y villegas — Francisco Gómez de. 1580–1645, Spanish poet and writer, noted for his satires and the picaresque novel La historia de la vida del Buscón (1626)
- rear its ugly head — the upper part of the body in humans, joined to the trunk by the neck, containing the brain, eyes, ears, nose, and mouth.
- reduction strategy — (theory) An algorithm for deciding which redex(es) to reduce next. Different strategies have different termination properties in the presence of recursive functions or values. See string reduction, normal order reduction, applicative order reduction, parallel reduction
- registered charity — official aid organization
- registered company — a company which has officially registered its business
- remembrance sunday — the second Sunday in November, which is the Sunday closest to November 11, the anniversary of the armistice of 1918 that ended World War I, on which the dead of both World Wars are commemorated
- repayment schedule — a document detailing the specific terms of a borrower's loan, such as monthly payment, interest rate, due dates etc
- restoration comedy — English comedy of the period of the Restoration, stressing manners and social satire.
- rheims-douay bible — Douay Bible.
- ride a hobby horse — an activity or interest pursued for pleasure or relaxation and not as a main occupation: Her hobbies include stamp-collecting and woodcarving.
- safety-deposit box — a lockable metal box or drawer, especially in a bank vault, used for safely storing valuable papers, jewelry, etc.
- saint george's day — April 23, celebrated in parts of the British Commonwealth in honor of the patron saint of Britain and especially in New Zealand as a bank holiday.