18-letter words containing o

objective idealism — a form of idealism asserting that the act of experiencing has a reality combining and transcending the natures of the object experienced and of the mind of the observer.
objective modula-2 — (language) (Or "ObjM2") An extension to Modula-2 for Cocoa and GNUstep software development. Objective Modula-2 follows the Objective-C object model and retains the bracketed Smalltalk message passing syntax used in Objective-C. Classes written in ObjM2 can be used within ObjC and vice versa. ObjM2 also retains Modula-2's data encapsulation features, namely nested modules with explicit import and export lists. Due to the strict type checking in Modula-2, ObjM2 can be considered a much safer programming language than is ObjC, yet losing none of the capabilities of ObjC.
oblique projection — something that is oblique.
oblique-slip fault — a fault on which the movement is along both the strike and the dip of the fault
occasional licence — a licence granted to sell alcohol only at specified times
occupational group — An occupational group is a category used by insurance companies to classify jobs according to how hazardous they are.
octachlorobiphenyl — (organic compound) Either of twelve isomers of the polychlorinated biphenyl containing eight chlorine atoms.
october revolution — Russian Revolution (def 2).
oedipus at colonus — a tragedy by Sophocles, written toward the end of his life and produced posthumously in 401? b.c.
of your own making — If you say that something such as a problem you have is of your own making, you mean you have caused or created it yourself.
off-street parking — spaces for cars located on private property rather than on a public street
offensive material — any published or broadcast content (such as articles, photographs, films, or websites) that is likely to be upsetting, insulting, or objectionable to some or most people
office of readings — the first of the canonical hours; matins
officer of the day — an officer who has charge of the guard and prisoners on an assigned day at a military installation. Abbreviation: OD, O.D., O.O.D.
official solicitor — an officer of the Supreme Court of Judicature with special responsibilities for protecting the interests of persons under disability
offset lithography — offset (def 6).
oil of catechumens — holy oil used in baptism, the ordination of a cleric, the coronation of a sovereign, or in the consecration of a church.
oil of wintergreen — methyl salicylate.
old curiosity shop — a novel (1840–41) by Dickens.
old low franconian — a Low German dialect of the Franks of the lower Rhine valley before c1100.
old man of the sea — (in The Arabian Nights' Entertainments) an old man who clung to the shoulders of Sindbad the Sailor for many days and nights.
omega-3 fatty acid — a polyunsaturated fatty acid, essential for normal retinal function, that influences various metabolic pathways, resulting in lowered cholesterol and triglyceride levels, inhibited platelet clotting, and reduced inflammatory and immune reactions.
on a sticky wicket — in an awkward situation
on automatic pilot — If you are on automatic pilot or on autopilot, you are acting without thinking about what you are doing, usually because you have done it many times before.
on delicate ground — in a situation requiring tact
on everyone's lips — being much discussed
on one's beam-ends — out of resources; destitute
on one's last legs — either of the two lower limbs of a biped, as a human being, or any of the paired limbs of an animal, arthropod, etc., that support and move the body.
on that/this score — You can use on that score or on this score to refer to something that has just been mentioned, especially an area of difficulty or concern.
on the back burner — low priority
on the credit side — You say on the credit side in order to introduce one or more good things about a situation or person, usually when you have already mentioned the bad things about them.
on the danger list — critically ill in hospital
on the ragged edge — precariously close to loss of self-control, mental stability, etc.
on the strength of — the quality or state of being strong; bodily or muscular power; vigor.
on your conscience — If you have something on your conscience, you feel guilty because you know you have done something wrong.
once in a lifetime — extremely rarely
one false move and — You use one false move to introduce the very bad or serious consequences which will result if someone makes a mistake, even a very small one.
one of sb's number — One of your number is a member of your group.
one way or another — somehow, by some means
one-banana problem — (jargon, abuse) At computer installations where the computers have operators for routine administrivia, the programmers and hardware people tend to look down on the operators and claim that a trained monkey could do their job. The incentives offered to said monkeys would then describe the difficulty of a task. A one-banana problem is simple; hence, "It's only a one-banana job at the most; what's taking them so long?" See also Infinite-Monkey Theorem.
one's heart bleeds — used to express sympathetic grief, but often used ironically
one's native heath — the place of one's birth or childhood
one's number is up — one is finished; one is ruined or about to die
open heart surgery — surgery performed on the exposed heart while a heart-lung machine pumps and oxygenates the blood and diverts it from the heart.
open pandora's box — If someone or something opens Pandora's box or opens a Pandora's box, they do something that causes a lot of problems to appear that did not exist or were not known about before.
open-collar worker — (job) Someone who works at home or telecommutes.
open-heart surgery — surgery performed on the exposed heart while a heart-lung machine pumps and oxygenates the blood and diverts it from the heart.
operating expenses — Operating expenses are expenses related to carrying out normal business activities.
operating software — software used in the operation of a computer system, typically by performing such tasks as memory allocation, job scheduling, and input/output control
operation overlord — the codename for the Allied invasion (June 1944) of northern France

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