18-letter words containing b, r, y, o

hexachlorobiphenyl — (organic compound) Either of forty-two isomers of the polychlorinated biphenyl containing six chlorine atoms.
honorable ordinary — any of the ordinaries believed to be among those that are oldest or that were the source of the other ordinaries, as the chief, pale, fess, bend, chevron, cross, and saltire.
hydrofluorocarbons — Plural form of hydrofluorocarbon.
hypophysis cerebri — the master endocrine gland, attached by a stalk to the base of the brain.
in all probability — the quality or fact of being probable.
incommensurability — not commensurable; having no common basis, measure, or standard of comparison.
indolebutyric acid — a white or yellowish, crystalline, water-insoluble powder, C 12 H 13 O 2 N, a plant hormone similar to indoleacetic acid and used for the same purposes.
informatory double — a double intended to inform one's partner that one has a strong hand and to urge a bid regardless of the strength of his or her hand.
john birch society — an ultraconservative organization, founded in December 1958 by Robert Welch, Jr., chiefly to combat alleged Communist activities in the U.S.
known lazy bastard — (abuse) (KLB) A term, used among technical support staff, for a user who repeatedly asks for help with problems whose solutions are clearly explained in the documentation, and persists in doing so after having been told to RTFM. KLBs are singled out for special treatment (i.e. ridicule), especially if they have been heard to say "It's so boring to read the manual! Why don't you just tell me?". The deepest pit in Hell is reserved for KLBs whose questions reveal total ignorance of the basic concepts (e.g., "How do I make a font in Excel?", "Where do I turn on my RAM?"), and who refuse to accept that their questions are neither simple nor well-formed.
lincoln's birthday — February 12, a legal holiday in some states of the U.S., in honor of the birth of Abraham Lincoln.
lonely hearts club — a club for people who are trying to find a lover or a friend
lowell observatory — the astronomical observatory, situated in Flagstaff, Arizona, at which Pluto was discovered in 1930.
madeira embroidery — broderie anglaise.
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.
monochlorobiphenyl — (organic compound) Either of three isomers of a chlorinated derivative of biphenyl containing one chlorine atom.
mountain cranberry — cowberry
nebular hypothesis — the theory that the solar system evolved from a mass of nebular matter: prominent in the 19th century following its precise formulation by Laplace.
network byte order — (networking) The order in which the bytes of a multi-byte number are transmitted on a network - most significant byte first (as in "big-endian" storage). This may or may not match the order in which numbers are normally stored in memory for a particular processor.
nobiliary particle — a preposition forming part of a title of nobility or surname, as French de or German von.
non-responsibility — the state or fact of being responsible, answerable, or accountable for something within one's power, control, or management.
nonachlorobiphenyl — (organic compound) Either of three isomers of the polychlorinated biphenyl containing nine chlorine atoms.
northeast by north — a point on the compass 11°15′ north of northeast. Abbreviation: NEbN.
northwest by north — a point on the compass, 11°15′ north of northwest. Abbreviation: NWbN.
octachlorobiphenyl — (organic compound) Either of twelve isomers of the polychlorinated biphenyl containing eight chlorine atoms.
passive vocabulary — all the words, collectively, that a person can understand
personal bodyguard — a person employed to protect a particular person
piperonyl butoxide — a light-brown liquid, C 1 9 H 3 0 O 5 , used chiefly as a synergist in certain insecticides.
probability theory — the theory of analyzing and making statements concerning the probability of the occurrence of uncertain events. Compare probability (def 4).
productivity bonus — an extra payment made to workers for being more productive or yielding more favourable results than normal
provably difficult — The set or property of problems for which it can be proven that no polynomial-time algorithm exists, only exponential-time algorithms.
pulmonary embolism — the blockage of a pulmonary artery, often by a blood clot, that stops the flow of blood to the lungs and which can result in death if untreated
range of stability — the angle to the perpendicular through which a vessel may be heeled without losing the ability to right itself.
reversionary bonus — a bonus added to the sum payable on death or at the maturity of a with-profits assurance policy
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.
rosebay willowherb — a perennial onagraceous plant, Chamerion (formerly Epilobium) angustifolium, that has spikes of deep pink flowers and is widespread in open places throughout N temperate regions
september holidays — a period of time in September when people do not have to go to school, college or work
shrubby cinquefoil — a small shrub, Potentilla fruticosa, of the rose family, native to the Northern temperate region, having pinnate leaves and numerous, showy, bright-yellow flowers.
solubility product — the maximum number of undissociated ions, of an electrolyte in a saturated solution, capable at a given temperature of remaining in equilibrium with the undissolved phase of the solution.
stand-by generator — an electrical system which operates automatically in case the usual system malfunctions
stationary bicycle — an exercise bike
subsidiary company — a company whose controlling interest is owned by another company.
three-body problem — the problem of calculating the motions of three bodies in space moving under the influence of only their mutual gravitational attraction.
to put years on sb — if you say that something such as an experience or a way of dressing has put years on someone, you mean that it has made them look or feel much older
too clever by half — If someone is too clever by half, they are very clever and they show their cleverness in a way that annoys other people.
treaty obligations — obligations or duties that must be carried out by a party as according to a treaty they have entered into
two-chamber system — the system of having two parliamentary chambers, as the House of Lords and the House of Commons in the United Kingdom
urban contemporary — popular dance music incorporating elements of rap, rhythm-and-blues, funk, and soul.
voluntary abortion — abortion (def 1).

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