15-letter words containing p, e, s, i
- double stopping — playing two notes or parts simultaneously on a string instrument
- duelling pistol — one of a pair of identical pistols made specifically for use in duels
- dumpster diving — the practice of foraging in garbage that has been put out on the street in dumpsters, garbage cans, etc., for discarded items that may still be valuable, useful, or fixable.
- duplicitousness — The state or condition of being duplicitous.
- dutchman's-pipe — a climbing vine, Aristolochia durior, of the birthwort family, having large, heart-shaped leaves and brownish-purple flowers of a curved form suggesting a tobacco pipe.
- e pluribus unum — one out of many: the motto of the USA
- east providence — a town in NE Rhode Island, near Providence.
- eclipse plumage — the dull plumage developed in some brightly colored birds after the breeding season.
- eclipse scotoma — a blind spot; a permanent or temporary area of depressed or absent vision caused by viewing the sun directly
- editio princeps — first edition.
- edriophthalmous — (of certain crustaceans) having stalkless eyes
- egyptian jasper — a type of jasper, generally with zones of colour, found in desert regions of Egypt
- electrodeposits — Third-person singular simple present indicative form of electrodeposit.
- electron optics — the study and use of beams of electrons and of their deflection and focusing by electric and magnetic fields
- electrophoresis — The movement of charged particles in a fluid or gel under the influence of an electric field.
- electropositive — Electrically positive.
- ellipsis points — the characters (… or formerly ***) forming a punctuation mark indicating an intentional omission of words or letters or an abrupt change of thought, lapse of time, incomplete statement, etc.
- emancipationist — An advocate of the emancipation of slaves.
- enantiomorphism — (chemistry) The relationship exhibited by a pair of enantiomorphs.
- enantiomorphous — Of or pertaining to enantiomorphs or enantiomorphism; enantiomorphic.
- english sparrow — a small Eurasian weaverbird, Passer domesticus, now established in North America and Australia. It has a brown streaked plumage with grey underparts
- english speaker — a person who speaks English as a first, or second mother tongue
- enterohepatitis — dual inflammation of the intestine and liver
- enteropeptidase — Enterokinase.
- enterprise zone — An enterprise zone is an area, usually a depressed or inner-city area, where the government offers incentives in order to attract new businesses.
- entrepreneurism — Synonym of entrepreneurialism.
- epidemiologists — Plural form of epidemiologist.
- episodic memory — the recollection of events within their historical setting
- epistemological — Of or pertaining to epistemology or theory of knowledge, as a field of study.
- epitestosterone — (organic compound) An inactive epimer of the steroid hormone testosterone.
- epsilon squared — (jargon) A quantity even smaller than epsilon, as small in comparison to epsilon as epsilon is to something normal; completely negligible. If you buy a supercomputer for a million dollars, the cost of the thousand-dollar terminal to go with it is epsilon, and the cost of the ten-dollar cable to connect them is epsilon squared. Compare lost in the underflow, lost in the noise.
- eric conspiracy — (person, humour) A shadowy group of moustachioed hackers named Eric first pinpointed as a sinister conspiracy by an infamous talk.bizarre posting ca. 1986. This was doubtless influenced by the numerous "Eric" jokes in the Monty Python oeuvre. There do indeed seem to be considerably more moustachioed Erics in hackerdom than the frequency of these three traits can account for unless they are correlated in some arcane way. Well-known examples include Eric Allman (of the "Allman style" described under indent style), Erik Fair (co-author of NNTP), Eric S. Raymond and about fifteen others. The organisation line "Eric Conspiracy Secret Laboratories" now emanates regularly from more than one site.
- escape velocity — great enough speed to escape gravity
- esprit de corps — military, sport: team spirit
- euphemistically — In a euphemistic manner.
- evening prayers — the daily evening service of Bible readings and prayers prescribed in the Book of Common Prayer
- exceptionalness — The quality of being exceptional.
- excess capacity — unused production capacity
- existence proof — non-constructive proof
- expansion joint — structural feature: gap to allow for expansion or contraction
- expeditiousness — The state of being expeditious; celerity, rapidity or speed.
- experientialism — (philosophy) The theory that experience is the source of knowledge.
- experientialist — A proponent of experientialism.
- experimentalism — An experimental practice or tendency, especially in the arts.
- experimentalist — One who performs experiments.
- explain oneself — to make clear what one means
- export earnings — the earnings of a company or country that are generated through the export of goods or services
- expression mark — one of a set of musical directions, usually in Italian, indicating how a piece or passage is to be performed
- expression tree — (mathematics, grammar) The syntax tree of an expression.
- expressionistic — Expressionist.