18-letter words containing s, p, e, a
- helicopter station — a place where helicopters are kept in readiness for use
- hepatosplenomegaly — Enlargement of both the liver and spleen.
- hexaphosphorylated — (biochemistry) phosphorylated with six units of phosphoric acid.
- hilary of poitiers — Saint, a.d. c300–368, French bishop and theologian.
- hippocratic facies — the sallow facial expression, with listless staring eyes, often regarded as denoting approaching death
- historical present — the present tense used in narrating a past event as if happening at the time of narration.
- hold up one's head — to be unashamed
- hungry programmers — (body) A group of programmers producing free software.
- hydroxytryptamines — Plural form of hydroxytryptamine.
- hyperaldosteronism — aldosteronism.
- hypercholesteremia — Alternative spelling of hypercholesteraemia.
- hypernationalistic — a person devoted to nationalism.
- hyperphosphorylate — To phosphorylate fully.
- hypersensitization — Photography. to treat (a film or emulsion) so as to increase its speed.
- hypersexualisation — Alternative spelling of hypersexualization.
- hypersexualization — The act or process of hypersexualizing.
- hypogastric artery — iliac artery (def 3).
- hypophosphorylated — (biochemistry) phosphorylated to a less than normal extent, or less than fully.
- imploded consonant — a consonant which is pronounced with or by implosion
- impressionableness — The quality of being impressionable.
- in praise of folly — Latin Moriae Encomium. a prose satire (1509) by Erasmus, written in Latin and directed against theologians and church dignitaries.
- in propria persona — represented by oneself and not by an attorney. Abbreviation: in pro. per.
- in the first place — firstly
- independent clause — a clause that can stand alone as a sentence, containing a subject and a predicate with a finite verb, as I was there in the sentence I was there when he arrived.
- industrial dispute — disagreement between workers and managers
- 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.
- inspector of taxes — an official of HMRC whose work is to assess individuals' income tax liability
- inter-relationship — reciprocal relation.
- interest rate swap — An interest rate swap is a contract where two parties exchange the cash flow from interest rates.
- interrelationships — Plural form of interrelationship.
- interstellar space — astronomy: space between the stars
- investment company — a company that invests its funds in other companies and issues its own securities against these investments.
- iphigenia in aulis — a tragedy (408? b.c.) by Euripides.
- iron (ii) sulphate — an iron salt with a saline taste, usually obtained as greenish crystals of the heptahydrate, which are converted to the white monohydrate above 100°C: used in inks, tanning, water purification, and in the treatment of anaemia. Formula: FeSO4
- irreproachableness — The quality or state of being irreproachable; integrity; innocence.
- isothermal process — a process that takes place without change in temperature.
- japanese andromeda — an Asian evergreen shrub, Pieris japonica, of the heath family, having broad, glossy leaves and drooping clusters of whitish blossoms.
- japanese artichoke — Chinese artichoke.
- japanese persimmon — the soft, orange or reddish, edible fruit of an Asian tree, Diospyros kaki.
- japanese red cedar — Cryptomeria japonica, an evergreen redwood tree that grows to a height of up to 50m
- justice department — the United States federal department for enforcing federal laws
- keep at a distance — to be reserved or cool toward; treat aloofly
- keep one's hand in — the terminal, prehensile part of the upper limb in humans and other primates, consisting of the wrist, metacarpal area, fingers, and thumb.
- krause's corpuscle — any of numerous encapsulated nerve endings occurring in the skin and mucous membranes, functioning as sensory cold receptors.
- landscape gardener — sb who designs gardens
- landscape painting — art: depicting natural scenery
- learned profession — any of the three vocations of theology, law, and medicine, commonly held to require highly advanced learning. Compare profession (def 1).
- lenticular process — a method for producing images with a three-dimensional effect by photographing on lenticulated film.
- 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