17-letter words containing e, a, s, t, m

omphalomesenteric — (anatomy) Of or pertaining to the umbilicus and mesentery.
on someone's tail — following or shadowing someone closely
on speaking terms — the act, utterance, or discourse of a person who speaks.
one-time password — (security) (OTP) A security system that requires a new password every time a user authenticates themselves, thus protecting against an intruder replaying an intercepted password. OTP generates passwords using either the MD4 or MD5 hashing algorithms. The equivalent term "S/Key", developed by Bellcore, is a trademark of Telcordia Technologies, so the name OTP is used increasingly. See RFC 1760 - "The S/KEY One-Time Password System" and RFC 1938 - "A One-Time Password System".
opening arguments — the statements or arguments provided by lawyers at the beginning of a trial
optical isomerism — stereoisomerism in which the isomers are identical in molecular weight and most chemical and physical properties but differ in their effect on the rotation of polarized light.
organic chemistry — the branch of chemistry, originally limited to substances found only in living organisms, dealing with the compounds of carbon.
over-compensation — a pronounced striving to neutralize and conceal a strong but unacceptable character trait by substituting for it an opposite trait.
overhead camshaft — a camshaft in an automotive engine that is located in the cylinder head over the engine block rather than in the block. Abbreviation: OHC.
overstep the mark — If someone oversteps the mark, they behave in a way that is considered unacceptable.
paleobiochemistry — the study of biochemical processes that occurred in fossil life forms.
parcplace systems — (company) A company spun-off from Xerox PARC that developed the original version of VisualWorks.
parents anonymous — (in Britain) an association of local voluntary self-help groups offering help through an anonymous telephone service to parents who fear they will injure their children, or who have other problems in managing their children
parts per million — the number of units (of a substance) present in a million units of another substance
pasteur treatment — Pasteur's method of preventing certain diseases, esp. rabies, by increasing the strength of successive inoculations with a specific weakened or attenuated virus
paymaster general — a government minister responsible for making payments by government departments
penitential psalm — any of the Psalms (the 6th, 32nd, 38th, 51st, 102nd, 130th, and 143rd) that give expression to feelings of penitence and that are used in various Christian liturgical services.
permanent address — a fixed address
personal computer — a compact computer that uses a microprocessor and is designed for individual use, as by a person in an office or at home or school, for such applications as word processing, data management, financial analysis, or computer games. Abbreviation: PC.
peterloo massacre — an incident at St Peter's Fields, Manchester, in 1819 in which a radical meeting was broken up by a cavalry charge, resulting in about 500 injuries and 11 deaths
phase of the moon — Used humorously as a random parameter on which something is said to depend. Sometimes implies unreliability of whatever is dependent, or that reliability seems to be dependent on conditions nobody has been able to determine. "This feature depends on having the channel open in mumble mode, having the foo switch set, and on the phase of the moon." See also heisenbug. True story: Once upon a time there was a bug that really did depend on the phase of the moon. There was a little subroutine that had traditionally been used in various programs at MIT to calculate an approximation to the moon's true phase. GLS incorporated this routine into a Lisp program that, when it wrote out a file, would print a timestamp line almost 80 characters long. Very occasionally the first line of the message would be too long and would overflow onto the next line, and when the file was later read back in the program would barf. The length of the first line depended on both the precise date and time and the length of the phase specification when the timestamp was printed, and so the bug literally depended on the phase of the moon! The first paper edition of the Jargon File (Steele-1983) included an example of one of the timestamp lines that exhibited this bug, but the typesetter "corrected" it. This has since been described as the phase-of-the-moon-bug bug.
picture messaging — Picture messaging is the sending of photographs or pictures from one mobile phone to another.
plateau's problem — the problem in the calculus of variations of finding the surface with the least area bounded by a given closed curve in space.
postage due stamp — a stamp that is affixed to mail at a post office when prepayment of postage is insufficient, to indicate the amount that must be collected from the addressee.
postmillennialism — the doctrine or belief that the second coming of Christ will follow the millennium.
potassium acetate — a white, crystalline, deliquescent, water-soluble powder, KC 2 H 3 O 2 , used chiefly as a reagent in analytical chemistry.
potassium bromate — a white, crystalline, water-soluble powder, KBrO 3 , used chiefly as an oxidizing agent and as an analytical reagent.
potassium bromide — a white, crystalline, water-soluble powder, KBr, having a bitter saline taste: used chiefly in the manufacture of photographic papers and plates, in engraving, and in medicine as a sedative.
potassium cyanide — a white, granular, water-soluble, poisonous powder, KCN, having a faint almondlike odor, used chiefly in metallurgy and photography.
potassium nitrate — a crystalline compound, KNO 3 , produced by nitrification in soil, and used in gunpowders, fertilizers, and preservatives; saltpeter; niter.
potassium oxalate — a colorless, crystalline, water-soluble, poisonous solid, K 2 C 2 O 4 ⋅H 2 O, used chiefly as a bleaching agent and in medical tests as an anticoagulant.
potassium sulfate — a crystalline, water-soluble solid, K 2 SO 4 , used chiefly in the manufacture of fertilizers, alums, and mineral water, and as a reagent in analytical chemistry.
poulter's measure — a metrical pattern using couplets having the first line in iambic hexameter, or 12 syllables, and the second in iambic heptameter, or 14 syllables.
pre-manifestation — an act of manifesting.
pre-modifications — an act or instance of modifying.
premonstratensian — a member of a religious order founded at Prémontré in N France in 1120 by St Norbert (about 1080–1134)
presentationalism — a style of production in which the audience is addressed directly with songs, skits, exposition, etc., and no attempt is made at realism.
prima inter pares — (of a female) first among equals.
primary qualities — any of the qualities inherent in an object, namely quantity, extent, figure, solidity, and motion or rest.
primary structure — Biochemistry. the basic sequence of amino acids in a polypeptide or protein.
prime ministerial — of or relating to the head of a parliamentary government
primitive baptist — (especially in the Southern U.S.) one belonging to a highly conservative, loosely organized Baptist group, characterized by extreme fundamentalism and by opposition to missionary work, Sunday Schools, and the use of musical instruments in church.
program statement — a single instruction in a computer program
pseudo-democratic — pertaining to or of the nature of democracy or a democracy.
pseudo-humanistic — a person having a strong interest in or concern for human welfare, values, and dignity.
pseudo-moralistic — a person who teaches or inculcates morality.
quantum chemistry — the application of quantum mechanics to the study of chemical phenomena.
quantum mechanics — a theory of the mechanics of atoms, molecules, and other physical systems that are subject to the uncertainty principle. Abbreviation: QM.
quasi-competitive — of, pertaining to, involving, or decided by competition: competitive sports; a competitive examination.
quasiexperimental — (medicine) Describing a trial in which the assignment to a group is based upon an experimental condition.

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